Laptop unable to use BitLocker on drive with invalid file characters
4.5
Files containing non-standard or illegal characters in their names block encryption.
Symptoms
- Encryption error
- Cannot delete/rename file
- Explorer crash
Possible Causes
- Linux/Mac file transfers
- Web downloads
Step-by-Step Fix
1
Rename via CMD
Use the command prompt to rename files with illegal characters.
2
Use Linux Live USB
Boot into Linux to easily rename files that Windows can't handle.
3
Run chkdsk
Chkdsk can sometimes fix invalid filename entries.
When to See a Technician
Characters like * ? : " < > | are reserved in Windows and can cause system errors.
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