You are receiving this message because the Memory Integrity setting in Windows 11 Security is preventing the Keyblock driver from loading on your device. Here are a few options you can try if you want to be able to use this driver:

To fix that:

To turn off the memory Integrity setting

Go to the Core isolation page in Windows Security.

Turn the Memory Integrity setting Off if it isn’t already. You'll need to restart your computer for the changes to take effect.

Notes: 

You can also open the Core isolation page by selecting Start  > Settings  > Update & Security  > Windows Security  > Device Security and then under Core isolation, selecting Core isolation details.

Though the driver has a minor vulnerability that’s preventing it from loading, it’s most likely not malicious in any way.

The driver name and company name that appear in the notification are the only reliable pieces of information that we have been able to gather about the driver.

If an updated driver is unavailable from the driver manufacturer, it might be a good idea to contact them and inquire whether a fix is coming soon.

for more info, please check this link A driver can't load on this device - Microsoft Support