One way to free up disk space in Windows 11, 10, 8, 7, Vista, and XP is to delete temporary files. Temporary files are files that your operating system only needed temporarily while it was running, but are now just wasting space.
Windows 10: How to Delete Temporary Files! [Permanent]
Most temporary files are stored in the Windows Temp folder, which varies from computer to computer. Manually cleaning this out in Windows usually takes less than a minute, but can take longer depending on the size of the temporary file collection.
To delete your temporary Windows files, follow these simple steps:
Open the Run dialog box.