Windows 10 and 11 have a suite of features called Core Isolation. 

One part of these security features is the option to enable Memory Integrity. This setting is related to how Windows runs drivers. You can learn more about Microsoft's Core Isolation and Memory Integrity settings from their Core Isolation webpage. 

If you install uScope and get the error message: "A driver cannot load on this device", with the driver listed being "grdusb.sys", then you will need to disable the memory integrity setting on your PC. This error message means that the driver for the license dongle cannot load on your PC, so uScope will always launch in Demo mode. 

If you see this error message, please follow the instructions below to disable memory integrity.

Disable Memory Integrity

1. Click the Windows Start icon and search for "Core Isolation", press Enter

2. Disable the Memory Integrity toggle button

3. Restart your PC for the change to take effect

Please note, you will not be able to re-enable memory integrity while you use uScope. It needs to remain off for the license driver to load.