Windows Temporary Files May 2026

If you’ve ever run a Disk Cleanup utility or peeked into the C:\Windows\Temp folder, you’ve likely seen a digital graveyard of folders with names like ~$doc.tmp or WinDB473.tmp . You might have wondered: What are these things? Can I delete them? Will my computer explode if I do?

Go ahead. Open %temp% . Select all. Delete. Watch hundreds of megabytes (or gigabytes) vanish into the digital ether. Your computer will thank you with faster boot times, more free space, and one less folder full of digital cobwebs. Have you ever found a weird .tmp file that you couldn't delete? Leave a comment below with the error message—I’ll help you troubleshoot it. windows temporary files

I have seen %temp% folders balloon to over 40GB. On a 256GB laptop with a modern game installed? That is a crisis. If you’ve ever run a Disk Cleanup utility

Temp files aren't malware. They are useful while they are active . The problem is that 90% of them outlive their usefulness by years. Part 4: Why You Should Clean Your Temp Files (Right Now) Ignoring your temp folder is like never taking out the trash. Eventually, you can’t walk through the kitchen. Will my computer explode if I do