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 USB driver won't install on Windows 11

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growler1 Posted - 10/27/2022 : 15:54:14
Hello,

Anyone install the CH341SER.exe USB driver succesfully on a Win 11 21H2 system? I receive a "Driver Install Failure!" message when I run it even as an Administrator.

Thanks
2   L A T E S T    R E P L I E S    (Newest First)
EmfDev Posted - 10/31/2022 : 10:14:14
hi growler1, we tried a few windows 11 home computers and they already have the driver pre-installed same as windows 10.
ihab17 Posted - 10/29/2022 : 00:03:00
Maybe Windows 11 doesn't accept unsigned drivers. From the command line with administrative access (run as Administrator even though you are an administrator), run the following:

bcdedit.exe /set nointegritychecks on

Retry the driver installation
If the installation goes fine, you can bring it back to the original state without affecting the already installed drivers by running:
bcdedit.exe /set nointegritychecks off

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