Over time, your computer collects a surprising amount of unnecessary files — cached data, temporary downloads, and system leftovers that slow everything down. Thankfully, Windows includes a simple but powerful tool called Disk Cleanup.

To access it, search “Disk Cleanup” in the Start menu. Choose the drive you want to clean (usually C:), and the tool will scan for unnecessary files. You’ll see categories like Temporary Internet Files, System Logs, and Recycle Bin.

Check the boxes for what you want to remove, then click OK → Delete Files.
For deeper cleaning, click “Clean up system files” to remove Windows Update leftovers and old system restore points.

It’s a good habit to run Disk Cleanup once or twice a month — it keeps your system lean and helps free up valuable space.

Tip: If your PC feels sluggish, combine Disk Cleanup with a restart and you’ll instantly notice smoother performance.