FWIW I discovered the Windows official "Disk cleanup" tool also leaves anything that was modified within the last week, so I guess it plays it safe.
They could also be required by currently running programs, to be fair. Nothing important is kept there. If not, the folder can be deleted entirely. I just close all apps and programs, delete everything in there and restart. Show 2 more comments. Peter Mortensen Pedro77 Pedro77 1, 8 8 gold badges 27 27 silver badges 37 37 bronze badges.
I did disk cleanup, and my temp is still 27GB : — Mooing Duck. MooingDuck try it again but Run it as Admin. This worked for me. Show 3 more comments. Go to Run and type cleanup : Then click Disk Cleanup and choose a drive. Matas Vaitkevicius Matas Vaitkevicius 1, 4 4 gold badges 19 19 silver badges 33 33 bronze badges. Using the Windows disk cleanup feature seems like the safest route. I'm looking at that interface now and it shows Temporary files at 0 bytes. Disk Cleanup doesn't do much good for me.
Disk Cleanup normaly leave files that were last modified less than 24 hours ago. Ben N Ben N Yes and no. This is generally the safest way I can think of when it comes to emptying your Temp folder. RobotUnderscore RobotUnderscore 3 3 silver badges 10 10 bronze badges. Eryper Eryper 7 7 bronze badges.
Step 2 "Windows Settings" will appear on the screen, then click on the "System" option. Step 3 Click on the "Storage" option. Step 4 Choose any drive local storage to check where space is being used. Step 5 Now, click on the "Temporary files" option. Step 6 Find the "Temporary files" option and click select on it and then click on the "Remove files" button to remove the temporary files. Method 2. Step 2 "Disk Cleanup" window will appear on the screen and select the drive you want to clean up.
Step 3 Under the "Files to delete" section, check or select the "temporary files" option and click on the "OK" button. Method 3. The temp folder provides workspace for programs. Programs can create temporary files there for their own temporary use. Each program should delete all its temporary files when it closes, but for various reasons it doesn't always happen for example, if the program crashes, it never gets to do this. That's why it's a good idea to periodically clean out anything left there.
Also note that there are some program installations which work in two steps. The first step concludes by writing temporary files and rebooting. The second step starts automatically after rebooting and needs to find those files there and then deletes them when it's done.
Other than doing it automatically when rebooting that would interfere with installations like the kind I described , it's always safe to delete the contents of the temp folder. Because it's safe to delete any temp files that aren't open and in use by an application, and since Windows won't let you delete open files, it's safe to try to delete them at any time. To see hidden folders, "Show hidden files, folders, and drives" needs to be enabled in Folder Options.
To see hidden system folders, disable "Hide protected operating system files" in Folder Options. Additionally, the Disk Cleanup Utility can be used to clear out several categories of temporary files all at once. At your own discretion, be selective in the options chosen. It is probably safe to pick everything except compressing files and cataloging these take a long time to do and do not have anything to do with temp files.
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