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    How to Free Up Space on Windows by Deleting Temporary Files

    Windows accumulates temporary files over time. Use the built-in Disk Cleanup tool and Storage Sense to safely remove them and reclaim gigabytes of space.

    4 min read 5 stepsApril 19, 2026Verified April 2026
    1

    Open Disk Cleanup

    ~18s
    Click the Start button (Windows logo) and type "Disk Cleanup" in the search bar. Click "Disk Cleanup" in the search results. A small window opens asking which drive to clean. Leave it set to C: (your main drive) and click OK. Disk Cleanup scans your drive — this takes 30 seconds to a minute.
    2

    Select the file types to delete

    ~27s
    Disk Cleanup shows a list of file categories with checkboxes and the amount of space each will free. Check the boxes next to: "Temporary Internet Files," "Temporary files," "Recycle Bin," "Windows Update Cleanup" (if listed), and "Downloaded Program Files." Leave other categories unchecked unless you know what they are. The total space to be freed shows at the top.

    Quick Tip

    If you see "Windows Update Cleanup" in the list, it's often the largest item — it can be several gigabytes. It's safe to delete.

    3

    Run the cleanup

    ~15s
    Click OK at the bottom of the Disk Cleanup window, then click "Delete Files" to confirm. The cleanup runs — for large amounts of data this may take 1–5 minutes. When it's done, the window closes automatically. Your drive now has more free space.
    4

    Open Storage Sense for automatic future cleanups

    ~33s
    Press the Windows key + I to open Settings. Go to System > Storage. At the top, you'll see a toggle for "Storage Sense" — turn it on. Scroll down and click "Configure Storage Sense or run it now" to set your preferences. You can set it to run automatically every week or month, and to automatically empty the Recycle Bin after a set number of days.

    Quick Tip

    Setting the Recycle Bin to auto-empty after 30 days is a good starting point — it means files sit in the bin for a month (in case you change your mind) and then disappear automatically.

    5

    Run Storage Sense manually right now

    ~27s
    On the same Storage Sense settings page, scroll to the bottom and click "Run Storage Sense now." This performs an immediate cleanup using the rules you configured above. For the first run, this often frees additional space beyond what Disk Cleanup found — especially if your computer has accumulated large update files over time.

    Warning

    Storage Sense will not delete files from your Documents, Desktop, Downloads, Pictures, or other personal folders unless you specifically configure it to do so. Your personal files are safe.

    You Did It!

    You've completed: How to Free Up Space on Windows by Deleting Temporary Files

    Need more help? Get Expert Help from a TekSure Tech

    Over time, Windows accumulates temporary files — fragments created while installing programs, browsing the web, updating Windows, and during normal computer use. These files are meant to be deleted after their job is done, but Windows doesn't always clean them up automatically. They pile up and can consume gigabytes of space on your hard drive.

    The good news is that Windows has built-in tools to safely delete these files. Disk Cleanup is the traditional tool that's been in Windows for many years — it's reliable and has clear explanations of what each category of file does. Storage Sense is a newer, more automatic version that can be set to clean up files on a schedule.

    These tools only delete files that are safe to remove: temporary installation files, the contents of your Recycle Bin, Windows Update cleanup files, and web browser caches. They do not touch your documents, photos, music, or any files you created.

    For most people who haven't done this in a while, running Disk Cleanup recovers anywhere from 1 to 20 gigabytes of space. On computers with smaller hard drives (like 128 or 256 GB solid-state drives), that recovered space can make a real difference in day-to-day performance.

    If your computer shows warnings about being low on disk space, or if it's been more than a year since you've done any maintenance, running both Disk Cleanup and turning on Storage Sense is a good first step before considering more drastic measures like deleting personal files.

    These steps work on Windows 10 and Windows 11. The interface looks slightly different between versions, but both have Disk Cleanup and Storage Sense.

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    Official Resources

    Microsoft SupportHow-To Geek — WindowsGCFGlobal — Windows Basics

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    How to Free Up Space on Windows by Deleting Temporary Files — Step-by-Step Guide | TekSure