Windows 10 Installation Guide

Application Note
AN_396
FTDI Drivers Installation Guide for
Windows 10
Version 1.0
Issue Date: 2016-02-02
The purpose of this application note is to provide users of FTDI chips with a
simple procedure for installing FTDI drivers for FTDI devices used under
Windows 10.
Use of FTDI devices in life support and/or safety applications is entirely at the user’s risk, and the
user agrees to defend, indemnify and hold FTDI harmless from any and all damages, claims, suits
or expense resulting from such use.
Future Technology Devices International Limited (FTDI)
Unit 1, 2 Seaward Place, Glasgow G41 1HH, United Kingdom
Tel.: +44 (0) 141 429 2777 Fax: + 44 (0) 141 429 2758
Web Site: http://ftdichip.com
Copyright © 2016 Future Technology Devices International Limited
Application Note
AN_396 FTDI Drivers Installation Guide for Windows 10
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D oc ument Reference N o.: FT _001281
C learance N o.: FT DI# 4 8 6
Table of Contents
1 Introduction ............................................................ 2
2 Installing FTDI Device Drivers ................................. 3
3 Installing CDM Drivers ............................................. 4
3.1 Windows Update .............................................................. 4
3.2 Pre-Installation using the FTDI setup executable .............. 5
3.3 Manual Installation........................................................... 9
4 Uninstalling FTDI Devices ...................................... 23
5 Troubleshooting .................................................... 24
5.1 Windows 10 cannot find drivers for my device ................. 24
5.2 Devices not shown in Device Manager for uninstalling ..... 25
5.3 Windows 10 warning message ........................................ 28
5.4 Driver will not install on Windows 10 x64 ........................ 29
5.5 Unable to view device installation status ......................... 30
6 Contact Information .............................................. 33
Appendix A – References ........................................... 34
Document References ............................................................ 34
Acronyms and Abbreviations .................................................. 34
Appendix B – List of Tables & Figures ......................... 35
List of Figures ........................................................................ 35
Appendix C – Revision History .................................... 37
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1 Introduction
The purpose of this application note is to provide users of FTDI chips with a simple procedure for
installing FTDI drivers for their devices under Windows 10.
This installation guide is only intended for installing FTDI devices on the following versions o f
Windows 10.

Windows 10

Windows 10 Home

Windows 10 Pro

Windows 10 Enterprise

Windows 10 Education
Windows 10 32 bit and 64 bit are supported.
This document does not cover Windows 10 IoT, embedded or mobile. A separate driver is required
for these versions of operating systems.
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2 Installing FTDI Device Drivers
The Windows Combined Driver Model (CDM) may be installed on XP, VISTA, Windows 7, Windows
8 or Windows 10 allowing applications to access FTDI devices through either the D2XX DLL or a
COM port without having to change driver type. However, it should be noted that an application
can only communicate through one of these interfaces at a time and cannot send commands to the
D2XX DLL and the associated COM port at the same time.
The CDM driver comes in two parts as shown in the block diagram below. The first part is the bus
layer (FTDIBUS.sys) that provides D2XX style functionality and is always installed. The second part
is the serial COM port layer (FTSER2k.sys) and the CDM driver will de termine whether a COM port
should be exposed by reading the EEPROM of FT232R, FT245R, FT2232D, FT2232H, FT4232H,
FT232H, FT-X series and other FTDI devices. In the case of FT232BM, FT245BM, devices, the CDM
driver will default to always installing both the bus and COM port parts.
This com port installation can be disabled and EEPROM settings ignored by changing the driver INF
files as detailed in FTDI Application Note AN_107 Advanced Driver Options. Please note that
modifying the INF files of a Microsoft HCK certified driver will invalidate the Windows certifica tion.
The FTDI driver download page is available here http://www.ftdichip.com/FTDrivers.htm
Figure 2.1 Windows CDM Driver Architecture
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3 Installing CDM Drivers
To install CDM drivers for an FTDI device under Windows 10, follow the instructions below:
Connect the device to a spare USB port on your PC.
3.1 Windows Update
If there is an available internet connection, Windows 10 will silently connect to the Windows
Update website and install any suitable driver it finds for the device .
Figure 3.1 shows the automatic driver installation taking place.
Figure 3.1 Windows Update Installation
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3.2 Pre-Installation using the FTDI setup executable
The Windows 10 CDM driver is also available as a setup.exe from the FTDI Web Site, as shown in
Figure 3.2.
The executable copies the default FTDI driver to the PC’s driver store prior to the FTDI device
being plugged into the PC.
Figure 3.2 Setup Executable Location
Download the setup.exe and right-click and select ‘Run as administrator’ as shown in Figure 3.3.
Figure 3.3 Setup Executable Run as administrator
You may see a message from ‘User Access Control’ asking ‘Do you want to allow this app to make
changes to your PC?’. If so, click Yes to continue.
Press the Extract button as shown in Figure 3.4.
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Figure 3.4 Extract CDM Drivers
Follow the installation instructions shown in Figure 3.5 including license terms agreement
acceptance shown in Figure 3.6 and the driver will be automatically installed. From a legal point of
view, the user must accept the license terms of the driver. Successful installation is shown in
Figure 3.7.
Figure 3.5 Driver Installation Wizard
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Figure 3.6 Driver Installation Wizard License Agreement
Figure 3.7 Driver Installation Completion
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Whenever an FTDI device is plugged into the PC, VCP and D2XX drivers will be installed,
depending on EEPROM settings, and listed in device manager as shown in Figure 3.8. Device
Manager can be found as shown in Figure 3.9.
Figure 3.8 Device Manager View
NOTE: The device must be physically plugged in after running the setup exe to complete the
installation.
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3.3 Manual Installation
If no suitable driver is automatically found then the following procedure should be followed.
Firstly download the latest FTDI windows driver files from http://www.ftdichip.com/FTDrivers.htm
and save the driver .zip file to a known folder on the PC. The desktop can be used so that the
driver folder can be easily located then e xtract the .zip file.
To locate the device manager on windows 10, right click on the Microsoft logo at the bottom left
hand corner of the screen and select Device Manager as shown in Figure 3.9.
Figure 3.9 Device Manager Access
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In the Device Manager window there should be a device under Other Devices with a yellow
warning symbol to indicate a problem i.e. no driver installed , as shown in Figure 3.10. The text
next to this device will depend on the device attached. In this example the device was a USB Serial
Cable.
Figure 3.10 Device Manager View
Right click on the other device (USB Serial Cable in this example) to bring up a menu as shown in
Figure 3.11. From the displayed menu select “Update Driver Software…”
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Figure 3.11 Update Driver Software
This then displays the option for an automatic search or a manual search. Select the second option
to browse manually as shown in Figure 3.12.
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Figure 3.12 Browse my computer for Driver Software
In the address box put the exact location where the drivers have been saved to. The location
should be the top level folder of the extracted files and contain two *.INF files. It is not necessarily
the exact same location as shown in Figure 3.13. The drivers could have been saved anywhere on
the PC by the user.
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Figure 3.13 Search Location
After entering or browsing for the address, select “Next” to start the installation as shown in Figure
3.14.
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Figure 3.14 Installing driver software
When the installation has finished a completion screen is displayed as shown in Figure 3.15.
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Figure 3.15 Successful Driver Software Update
Press Close to close this window and go back to the Device Manager Window.
If the Virtual Com Port option has been selected then the Device Manager will show a device under
Other Devices but in addition to this there is a new entry under Universal Serial Bus Controllers
indicated in Figure 3.16 as the USB Serial Converter. This indicates the bus layer of the driver is
installed. Installing the Virtual Com Port layer of the driver is almost a repeat of the last few steps.
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Figure 3.16 Device Manager View
Right click on the other device (USB Serial Cable in this example) to bring up a menu as shown in
Figure 3.17. From the displayed menu select “Update Driver Software…”
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Figure 3.17 Update Driver Software
This then displays the option for an auto matic search or a manual search as shown in Figure 3.18.
Select the second option to browse manually
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Figure 3.18 Browse my computer for Driver Software
In the address box put the exact location where the drivers have been saved to. The location
should be the top level folder of the extracted files and contain two *.INF files. It is not necessarily
the exact same location as shown in Figure 3.19. The drivers could have been saved anywhere on
the PC by the user.
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Figure 3.19 Search Location
After entering the address select “Next” to start the installation as shown in Figure 3.20.
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Figure 3.20 Installing driver software
When the installation is finished a completion screen is displayed as shown in Figure 3.21.
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Figure 3.21 Successful Driver Software Update
Note this screen also displays the COM port number assigned to the device.
Press Close to close this window and go back to the Device Manager Window as shown in Figure
3.22.
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Figure 3.22 Device Manager View
This time the Device Manager does not have an entry under Other Devices but does show entries
under Universal Serial Bus Controllers and Ports (COM & LPT). Figure 3.22 displays a correct
installation. The device is now ready to use on COM3.
NOTE: Not all devices will install to COM3. The COM port allocation is determined by the
installation wizard on the basis of the next free com port as designated in the PC registry. The
COM port can be reassigned to another free port in advance properties as shown in Figure 3.23.
FTDI have also produced a utility called COM PORT Assignment.
Figure 3.23 Advanced Settings
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4 Uninstalling FTDI Devices
The FTDI utility CDM Uninstaller can be used to remove FTDI drivers from the Windows 10 PC. The
utility is available on the FTDI website.
Alternately devices can be removed using the Device Manager by simply right-clicking on the
mouse and selecting "Uninstall". This will delete the associated registry entries for that device
only. Windows 10 provides an automatic method to delete driver files via a check box to "Delete
the driver software for this device" on the uninstall dialog box.
Figure 4.1 VCP COM Port Uninstall
Figure 4.2 D2XX USB Controller Uninstall
This stage is done twice. Once for the device under Ports (COM & LPT) and the next time for the
device under Universal Serial Bus Controllers as shown in Figure 4.1 and Figure 4.2.
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5 Troubleshooting
5.1 Windows 10 cannot find drivers for my device
This error can occur if the VID and PID programmed into the device EEPROM do not match those
listed in the INF files for the driver. The VID and PID programmed into the device EEPROM may be
found by using the USBView utility from the FTDI web site. These can then be checked against the
VID and PID entries in the driver INF files. If they do not match, that driver cannot be installed for
that device without either re-programming the device EEPROM or modifying the list of VID and PID
numbers in the INF files.
Please note that only your own company VID and PID or FTDI's VID (0x0403) and associated PID
issued by FTDI for use by the customer should be used in the EEPROM and INF files.
End customers should obtain modified drivers from the OEM of the device, and not necessarily edit
the files themselves. If the FTDI driver files are edited in any way, the certification is invalidated
and the default drivers may not install.
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5.2 Devices not shown in Device Manager for uninstalling
Devices that have been installed on a system but are not currently available are referred to as
"phantom devices". These devices are not usually displayed in the device manager, but can be
made to be displayed as though they are attached. This allows device properties to be changed or
devices to be uninstalled via Device Mange r even though the device is not physically connected to
the PC.
To display phantom devices in Device Manager, a new system variable is required. Open "Control
Panel  System and Security  System" as shown in Figure 5.1.
Figure 5.1 Advanced System Settings
Select the "Advanced" tab and click "Environment Variables" in Figure 5.2.
Figure 5.2 Environment Variables
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In the System Variables section (NOT THE USER VARIABLES SECTION) shown in Figure 5.3
Figure 5.3 System Variables
Click "New..." to display the following window in Figure 5.4.
Figure 5.4 New System Variable
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Create a new System Variable called "DevMgr_Show_NonPresent_Devices" and set the value to
1, then click OK.
Open the Device Manager and select "View  Show Hidden Devices" as shown in Figure 5.5.
Device Manager will then show all hidden and phantom devices available on that PC as shaded.
Figure 5.5 Shown Hidden Devices
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5.3 Windows 10 warning message
If the driver is not certified then a pop up window such as shown below may be displayed.
Figure 5.6 Windows can’t verify the Publisher
If you are certain of the source of the driver the warning can be ignored and you can continue
installation by selecting “Install this driver software anyway”.
If you are unsure about the driver source contact your vendor.
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5.4 Driver will not install on Windows 10 x64
Windows 10 x64 OS will only allow certified drivers to be installed. The certified driver supplied by
FTDI will work with VID 0403 and the following PID’s for their respective devices:
PID 6001 for FT232 and FT245
PID 6010 for FT2232
PID 6011 for FT4232
PID 6014 for FT232H
PID 6015 for all FT-X series
PID 601C for FT4222H
If you have a product where the manufacture has customized the driver but has not signed / re certified it, then the driver will not load. You should contact your vendo r to determine if they will
support Windows 10 x64.
Figure 5.7 shows the error that is reported when the driver installation fails due to the driver not
being certified.
Figure 5.7 Problem Installing the Driver
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5.5 Unable to view device installation status
If the installation progress is not shown automatically by the PC, it can be accessed by entering
the PC Settings. Click on the Windows icon on the bottom left hand corner of the PC and select
Settings. A window should appear as shown in Figure 5.8.
Figure 5.8 Windows Settings
Select ‘Update and Security’ to view any update status. You may see a similar screen shown in
Figure 5.9.
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Figure 5.9 Windows Update Settings
Click on Install updates if available as shown in Figure 5.10.
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Figure 5.10 Windows Update Install Now
Please ensure that your PC is kept up to date by always installing the latest Windows updates. This
can have an adverse effect on driver installation if the PC is not kept up to date.
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6 Contact Information
Head Office – Glasgow, UK
Branch Office – Tigard, Oregon, USA
Future Technology Devices International Limited
Unit 1, 2 Seaward Place, Centurion Business Park
Glasgow G41 1HH
United Kingdom
Tel: +44 (0) 141 429 2777
Fax: +44 (0) 141 429 2758
Future Technology Devices International Limited
(USA)
7130 SW Fir Loop
Tigard, OR 97223-8160
USA
Tel: +1 (503) 547 0988
Fax: +1 (503) 547 0987
E-mail (Sales)
E-mail (Support)
E-mail (General Enquiries)
[email protected]
[email protected]
[email protected]
E-Mail (Sales)
E-Mail (Support)
E-Mail (General Enquiries)
[email protected]
[email protected]
[email protected]
Branch Office – Taipei, Taiwan
Branch Office – Shanghai, China
Future Technology Devices International Limited
(Taiwan)
2F, No. 516, Sec. 1, NeiHu Road
Taipei 114
Taiwan , R.O.C.
Tel: +886 (0) 2 8791 3570
Fax: +886 (0) 2 8791 3576
Future Technology Devices International Limited
(C hina)
Room 1103, No. 666 West Huaihai Road,
Shanghai, 200052
C hina
Tel: +86 21 62351596
Fax: +86 21 62351595
E-mail (Sales)
E-mail (Support)
E-mail (General Enquiries)
E-mail (Sales)
E-mail (Support)
E-mail (General Enquiries)
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
Web Site
http://ftdichip.com
Distributor and Sales Representatives
Please visit the Sales Network page of the FTDI Web site for the contact details of our distributor(s) and sales
representative(s) in your country.
Sys tem and equipment manufacturers and des igners are responsible to ens ure that their s ystems, and any Future T ec hnology
D evic es I nternational L td (FT DI) devices inc orporated in their s ystems, meet all applicable s afety, regulatory and s ystem - level
performanc e requirements. A ll application-related information in this document (including application des c riptions , s ugges ted
FT D I devic es and other materials ) is provided for referenc e only. While FT D I has taken c are to as s ure it is ac c urate, this
information is s ubject to c ustomer c onfirmation, and FT D I dis c laims all liability for s ys tem des igns and for any applic ations
as s istance provided by FTD I. U se of FT DI devices in life s upport and/or s afety applications is entirely at the us er’s ris k, a nd the
us er agrees to defend, indemnify and hold harmles s FTDI from any and all damages , c laims , s uits or expens e res ulting from
s uc h us e. T his doc ument is s ubject to c hange without notic e. N o freedom to us e patents or other intellectual property rights is
implied by the public ation of this doc ument. N either the whole nor any part of the information c ontained in, or the produc t
des c ribed in this doc ument, may be adapted or reproduc ed in any material or electronic form without the prior written c ons ent
of the c opyright holder. Future T ec hnology D e vic es I nternational L td, U nit 1 , 2 Seaward P lac e, C enturion Bus ines s P ark,
G las gow G 4 1 1 H H , U nited Kingdom. Sc otland Regis tered C ompany N umber: SC 1 3 6 6 4 0
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C learance N o.: FT DI# 4 8 6
Appendix A – References
Document References
AN_107 Advanced Driver Options
http://www.ftdichip.com/FTDrivers.htm
http://www.ftdichip.com/Support/Utilities.htm
Acronyms and Abbreviations
Terms
CDM
Description
Windows Combined Driver Model
OS
Operating System
PID
Product ID
USB
Universal Serial Bus
VID
Vendor ID
WHCK
Windows Hardware Certification Kit
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AN_396 FTDI Drivers Installation Guide for Windows 10
V ers ion 1 .0
D oc ument Reference N o.: FT _001281
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Appendix B – List of Tables & Figures
List of Figures
Figure 2.1 Windows CDM Driver Architecture ................................................................................ 3
Figure 3.1 Windows Update Installation ........................................................................................ 4
Figure 3.2 Setup Executable Location ........................................................................................... 5
Figure 3.3 Setup Executable Run as administrator ........................................................................ 5
Figure 3.4 Extract CDM Drivers..................................................................................................... 6
Figure 3.5 Driver Installation Wizard............................................................................................. 6
Figure 3.6 Driver Installation Wizard License Agreement ............................................................... 7
Figure 3.7 Driver Installation Completion ...................................................................................... 7
Figure 3.8 Device Manager View ................................................................................................... 8
Figure 3.9 Device Manager Access ................................................................................................ 9
Figure 3.10 Device Manager View ............................................................................................... 10
Figure 3.11 Update Driver Software ............................................................................................ 11
Figure 3.12 Browse my computer for Driver Software ................................................................. 12
Figure 3.13 Search Location ....................................................................................................... 13
Figure 3.14 Installing driver software ......................................................................................... 14
Figure 3.15 Successful Driver Software Update ........................................................................... 15
Figure 3.16 Device Manager View ............................................................................................... 16
Figure 3.17 Update Driver Software ............................................................................................ 17
Figure 3.18 Browse my computer for Driver Software ................................................................. 18
Figure 3.19 Search Location ....................................................................................................... 19
Figure 3.20 Installing driver software ......................................................................................... 20
Figure 3.21 Successful Driver Software Update ........................................................................... 21
Figure 3.22 Device Manager View ............................................................................................... 22
Figure 3.23 Advanced Settings ................................................................................................... 22
Figure 4.1 VCP COM Port Uninstall .............................................................................................. 23
Figure 4.2 D2XX USB Controller Uninstall.................................................................................... 23
Figure 5.1 Advanced System Settings ......................................................................................... 25
Figure 5.2 Environment Variables ............................................................................................... 25
Figure 5.3 System Variables ....................................................................................................... 26
Figure 5.4 New System Variable ................................................................................................. 26
Figure 5.5 Shown Hidden Devices ............................................................................................... 27
Figure 5.6 Windows can’t verify the Publisher ............................................................................. 28
Figure 5.7 Problem Installing the Driver...................................................................................... 29
Figure 5.8 Windows Settings ...................................................................................................... 30
Figure 5.9 Windows Update Settings........................................................................................... 31
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Figure 5.10 Windows Update Install Now .................................................................................... 32
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Appendix C – Revision History
Document Title:
AN_396 FTDI Drivers Installation Guide for Windows 10
Document Reference No.:
FT_001281
Clearance No.:
FTDI# 486
Product Page:
http://www.ftdichip.com/FTProducts.htm
Document Feedback:
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Revision
Changes
Date
1.0
Initial Release
2016-02-02
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