Error Installing Optibit Drivers or Legacy USB on Windows 11

Tech Note: TN2301
Product: TDT Drivers, PO5e, PO5c, PO8e
Version: 98 and above
Date Added: 2023-03-06

Issue

TDT Drivers v98 and above support Windows 11. Users installing an Optibit interface or Legacy USB 2.0 interface will see this dialog:

At the end of the installation, you will see this error message:

This only affects users with Optibit interface or legacy USB interface

Solution

You can ignore the error message at the end of installation. The installer automatically disables the Core isolation setting for you. This setting is found at Start > Settings > Update & Security > Windows Security > Open Windows Security > Device Security > Core isolation details.

More background information on this issue can be found in Tech Note #2102.