Have you noticed that sometimes you are not able to save credentials? For example, when accessing remote shares, shortcuts, etc. You might have also seen a "Windows Defender Credential Guard does not allow using saved credentials" error message. This is because 'Windows Virtualization-Based Security' is turned on. And this is on, by default, in Windows 11. Windows 10 has it available but because it is a bit of a resource hog, it isn't turned on by default. This is also another reason to disable it.
To disable it, do the following:
- Press Win + I to launch the Settings app. Navigate to the left-hand side menu and click on the Privacy and Security option.
- Click on Windows Security and then click the Open Windows Security button.
- Windows Security app will launch. Go to the left-hand side menu and select Device Security.
- Find the Core isolation section and click on the Core isolation details option.
- Now, check whether the Memory Integrity toggle is active or not. If it is active, toggle the switch to disable the feature.
- Restart your system. And test credential saving / performance.