How to Safely Delete Your Old Windows Version
Deleting your old Windows version clears out 20 GB or more of wasted storage space left behind after a system upgrade. This backup copy sits in a folder named Windows.old on your main drive and lets you downgrade to your previous operating system for up to 10 days.
Windows normally removes these leftover files automatically after that short window passes. If your computer runs low on disk space right now, you can delete them yourself using the built-in Disk Cleanup tool as long as you are sure you do not want to roll back.
Delete your old Windows version by going to Settings System Storage. Click Temporary files, select “Previous version of Windows,” and then click Remove files. Confirm the deletion to reclaim disk space.
Step 1Go to Storage Settings
Locate where Windows displays your disk usage to begin the cleanup process.
Press the Win on your keyboard (it has the Windows logo) or click the Start button in the bottom-left corner. Then, click the Settings icon (it looks like a gear). Choose System, and then click on Storage.
Step 2Find Temporary Files
Temporary files are often where your old Windows version is hiding, ready to be deleted.
Temporary files reside on your main drive, typically labeled "C:". Clicking the "Temporary files" option initiates a scan that identifies files Windows can remove to free up storage space on your computer, potentially freeing up 5 gigabytes of space.
Step 3Choose the Old Windows Version to Delete
Find 'Previous version of Windows' in the list of temporary files. Put a checkmark next to it to select it for removal.
Click the Remove files button at the top of the list to clear out the old data.
Step 4Confirm Deletion
This final check permanently removes the old operating system files. Once confirmed, that previous installation is gone for good, meaning the ability to roll back disappears.
The confirmation window reminds users that deleting the old Windows version cannot be undone. Users will lose the ability to return to the previous Windows version. If users are sure about deleting, they click Delete.
Carefully confirm the action before proceeding. Once confirmed, Windows 10 deletion is permanent and cannot be undone. Ensure all necessary files and settings from the old Windows are saved. If unsure about any data, cancel the deletion process to allow more time for checking.
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Summary
Deleting your old Windows version frees up storage space, though completing the task requires administrator rights.
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About the Author
Richard
Tech Writer, IT Professional
Richard, a writer for Geek Rewind, is a tech enthusiast who loves breaking down complex IT topics into simple, easy-to-understand ideas. With years of hands-on experience in system administration and enterprise IT operations, he’s developed a knack for offering practical tips and solutions. Richard aims to make technology more accessible and actionable. He's deeply committed to the Geek Rewind community, always ready to answer questions and engage in discussions.
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