TUSBAudio driver preinstallation failed to install

Asked By 50 points N/A Posted on -

Hello Friends,

When I am trying to install XMOS/Thesycon, I ended with an error message. I have tried this installation Windows 7 and Windows XP, works well and good without any issues. But when I try in Windows 8 I am getting this error message. XMOS cannot in Windows 8? Please help me to get installed in windows 8 operating system. Thanks.

Error :


Preinstallation failed! Please run setup again. If you are asked to confirm installation of software, please confirm.

Answered By 110 points N/A #188060

TUSBAudio driver preinstallation failed to install



This error is occurring because of Windows’s driver signature checking. This setting is applied harder than x86 OS. So, what you’ve to do is to disable this option and then install the driver.

1. Press “Ctrl + X”.

2. From the pop-up menu, select “Command Prompt(admin)”.

3. When the console window comes, type and hit enter the following commands:

bcdedit -set loadoptions DISABLE_INTEGRITY_CHECKS

bcdedit -set TESTSIGNING ON

4. Now try to install your driver again.

If you have to re-enable this again, run the following commands;

bcdedit -set loadoptions ENABLE_INTEGRITY_CHECKS

bcdedit -set TESTSIGNING OFF

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