Laptop unable to encrypt secondary drive
4.5
BitLocker fails to enable on a second internal or external drive.
Symptoms
- Option missing
- Error message
- Drive not listed
Possible Causes
- Filesystem not NTFS
- Drive locked
- Policy restriction
Step-by-Step Fix
1
Convert to NTFS
BitLocker only works on NTFS-formatted drives.
2
Check for Auto-Unlock
Ensure the OS drive is encrypted first if you want auto-unlock.
3
Use Manage-bde
Try enabling it via CMD for the specific drive letter.
When to See a Technician
Secondary drives don't need a TPM, but they do need to be formatted as NTFS.
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