How to Remove Prefetch Files on Windows

Before You Clean

Prefetch is a Windows performance cache used for application launches. Treat its reset as targeted troubleshooting, not routine storage maintenance.

Review and Clean Manually

1. Start with the actual symptom: compare startup apps, disk health, and whether one application is slow. A Prefetch folder is not evidence of a fault.

2. Leave Windows-managed launch caches alone during ordinary cleanup. Avoid taking ownership of system folders or deleting all Prefetch files.

3. If a support procedure specifically requires a reset, record the reason and follow that procedure for the affected machine.

4. After a reset, expect Windows to rebuild launch data. Judge performance after normal usage, not only the first launch.

5. For low disk space, investigate Downloads, unused applications, and supported temporary files instead.

Where Kudu Helps

Kudu lists Prefetch Data as an optional performance-cache reset, unselected by default. Review it separately and expect a slower next launch. CLI cleanup requires --include-cache-resets to include these resets; cloud cleanup excludes them.

Open Clean up > System Cleaner and run Scan. Review the relevant category and expand its results to inspect the paths. Set exclusions for anything you need to keep, then check the full selected total before Clean. Results search filters the view; it does not erase selections elsewhere.

After cleaning, check the summary and Activity > Cleanup receipts for removed, skipped, or failed items. A receipt is an outcome record, not a backup. Recovery Centre restores supported settings, not deleted files. Compare actual disk free space and test the original symptom; cache removal alone is not a promise of better performance.

Download Kudu Free → · Cleaning reference

References

• Official maintenance documentation
• Kudu cleaner rules