Active Directory: Access Denied to Shares or GPOs

What you’ll notice: Users (even admins) can’t access shared folders, apply GPOs, or log in properly.

Why it happens:

• Group membership changed
• GPOs are blocking access

How to fix it:

• Use Active Directory Users and Computers to check group membership
• Use gpresult to confirm which GPOs are applying
• Check folder and share permissions for that user or group