Should You Delete System Junk Files?

It makes sense, right? Junk files are junk. They’re either not being used by your computer any more or it’s safe to delete them. You don’t necessarily need to delete system junk files all the time, and it’s normal for your computer to produce them. But there are several reasons why it’s a good idea to rid your PC of these kinds of files:

Free up space. Junk files, as you’ll soon find out, take up loads of space on a computer. If you’re running low on disk space, consider freeing some up by deleting unnecessary files.Speed up your system. A computer that has to constantly deal with unnecessary files is one that has to put extra resources into maintaining them. Deleting junk files might help speed up downloads, improve streaming performance, and expedite virus scans.Clean up malware. It’s not the most common place for viruses to hide, but it is possible for malware to sit amongst files that are considered junk, meaning erasing them could even help clean up dangerous files.

If you’re not careful, though, deleting junk files can also have effects you might not find so helpful. For example, web browser cookies could be considered junk if you don’t like your computer storing them, but erasing them will log you out of the corresponding web accounts. Depending on the method you use, clearing junk files can also delete what’s stored in the clipboard, wipe your current browsing session, and remove log files which could be used to troubleshoot PC problems. However, as long as you read carefully what you’re about to delete, there shouldn’t be any surprises.

How to Get Rid of System Junk on Your PC

There are several methods, and most of them overlap. Here are the best ways to clear away junk files on Windows 11, starting with the easiest to perform.

Empty the Recycle Bin

This is an often overlooked way to clean up junk files, but it’s the best first thing to address since you’ve already determined what’s worthy of being erased. Every file you’ve deleted lands in the Recycle Bin, but nothing is erased for good until you empty it.

Delete Temporary Files

Other junk files exist in Windows 11 in the form of temporary files. They’re just as easy to delete as Recycle Bin data, with the added benefit of Storage Sense, a feature that will auto-delete temporary files (including Recycle Bin files).

Run Disk Cleanup

Disk Cleanup is a tool built-in to Windows 11 which does a great job at erasing junk files such as program files, temporary internet files, caches, and thumbnails. These are things you don’t normally think of erasing, but they can be removed with ease to free up space and provide a snappier overall experience. For example, to automatically clean junk files every month, choose Every month from the first drop-down menu. You can also auto-clear the Recycle Bin and clear out files from the Downloads folder on a schedule. Run Storage Sense now will perform these actions on-demand whenever you select it. This also serves as another way to empty the Recycle Bin and delete temporary files.

Run CCleaner

The methods described above are authorized by Microsoft, but they’re not the only ways to delete junk files in Windows 11. There are third-party tools arguably more useful for wiping away junk files because they contain far more options, though this also makes them riskier. CCleaner is a program we recommend for registry cleaning, but it also contains an entire section dedicated to junk file cleaning. Here’s a quick overview on how to use it to delete temporary files and other things, from lots of places Windows’ tools don’t support: