External HDD/SSD or USB drives were often used to store and transfer files from one computer to another.
To prevent such things, Windows 11 provides you an option to disable access to the removable storage devices.
Below, we have shared a step-by-step guide on blocking access to USB drives in Windows 11.

Therefore, before following the steps, verify to create a system restore point.
Computer Configuration > Administrative Templates > System > Removable Storage Access
3.
Now, on the right pane, scroll down and find theAll Removable Storage classes: Deny all accesspolicy.

Once found, double-choose the policy.
On the All Removable Storage Classes: Deny all access policy window, select Enabled, and press theApplybutton.
After making the above changes, cycle your Windows 11 computer.

How to Enable Access to Removable storage drives?
Heres how you’re able to revert the changes.
On the right, double hit theAll Removable Storage classes: Deny all accesspolicy.

On the next window, selectNot configuredand punch theApplybutton.
This will allow access to removable storage devices in your Windows 11.
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