fltmgr.sys
Microsoft — File-system filter manager
When blamed in a crash: Often a victim, dig deeper
What to do
The layer that hosts antivirus/backup file filters. When it crashes, one of those filters is nearly always the real cause.
- Update or temporarily remove third-party antivirus/backup/cloud-sync software.
- Check the driver list in this report for security-vendor files — that's your culprit.
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