Laptop unable to use BitLocker on drive with encrypted file errors
4.5
Files already encrypted with EFS (Encrypting File System) conflict with BitLocker.
Symptoms
- Encryption stops on specific file
- Green file names in Explorer
- Access denied
Possible Causes
- Manual file encryption
- Corporate security policies
Step-by-Step Fix
1
Decrypt EFS Files
Right-click file > Properties > Advanced > Uncheck "Encrypt contents".
2
Use Cipher Command
Run "cipher /d /s:C:" to decrypt all EFS files on the drive.
3
Check Certificates
Ensure you have the EFS recovery key before decrypting.
When to See a Technician
BitLocker (Full Disk) and EFS (File Level) can coexist, but EFS files can cause issues during the initial encryption phase.
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