Laptop BitLocker failing on drive with superfetch fragmentation
4.5
The Superfetch (SysMain) database is fragmented, causing system lag.
Symptoms
- Slow encryption
- System lag
- Disk usage 100%
Possible Causes
- Years of usage
- Disk errors
Step-by-Step Fix
1
Disable SysMain Service
Stop and disable the "SysMain" service in services.msc.
2
Clear Prefetch Folder
Superfetch data is stored in the Prefetch folder.
3
Re-enable SysMain
Restart the service to rebuild the database.
When to See a Technician
Superfetch is designed to speed up the system, but a corrupted database does the opposite.
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