Registry key for local drive restriction (147707)

Registry key for local drive restriction

Some applications cannot access local drive after is has been restricted through the management console. What is the registry key that controls this restriction?

3rd party access needs to read and analyze the registry key of drives restriction.

Resolution:

Restricted (hidden) local drives parameters are written into the group policy branch in the user's hive (HKCU). It's located in:

key: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
value name: NoDrives
type: DWORD

Value is bit-encoded, where 1 - restriced drive and 0 - non-restricted. Lower bits correspond to drives A, B, C, D, etc.

For example, to restrict only drives A, B and C value will be 111 binary. This is 7 decimal.

Please see this link for more detailed explanation:
Explanation of drive restrictions bit-encoding