Registry key for local drive restriction (147707)

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Title

Registry key for local drive restriction
Description

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

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

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