Warning
Use an administrator account for these steps, and keep a recent backup before making repair or security changes.
What you will achieve
When the disk LED is solid and everything freezes, find the process or service hogging the drive.
1) Identify top disk consumers
- Open Task Manager → Processes and sort by Disk.
- Use Resource Monitor for file-level activity if needed.
2) Check common service causes
- Temporarily stop
SysMainto test old HDD behaviour. - Pause Windows Search indexing to test indexer spikes.
3) Run storage health checks
chkdsk C: /scan
wmic diskdrive get status