I'm noticing that my C drive, which has Windows 11 installed, is taking up a lot of space. Specifically, the Windows folder is using about 50GB, and my user files are consuming around 40GB. Considering that both Program Files and Program Files (x86) are about 12GB each, this feels excessive to me. I'm looking for ways to clean up and reduce this space usage. What can I do?
4 Answers
When using Disk Cleanup, make sure to check the option to clean up system files, including old Windows update files. This can often help clear a lot of space.
Running Disk Cleanup is a good start to reclaim some space. It lets you remove temporary files and old system files that are no longer needed. Make sure to select 'Clean up system files' when you run it!
50GB for Windows isn't ideal, but it can happen over time as files accumulate. Your user folder could include everything from your desktop, downloads, documents, and program working files, which can grow significantly. I recommend using tools like WizTree or WinDirStat to visualize what's taking up space. You'll be able to spot and delete large files safely to free up some room.
Okay, I’m a bit lost here. How do I actually use WizTree?
If you're really struggling with disk space, consider reinstalling Windows from a USB. This method can clear out unnecessary files and might free up several gigabytes.

What exactly is WizTree? Is it a separate software or something inbuilt in Windows?