How to Safely Delete Your Old Windows Version
The Windows.old folder stores your previous operating system files on your main drive, taking up 20 GB or more of disk space after a major upgrade. Windows keeps this backup folder for 10 days to let you roll back if something goes wrong, and then deletes it automatically.
You can delete this leftover folder early using the built-in Disk Cleanup tool to free up disk space right away. Do this only when you are completely sure you do not want to go back to your old version of Windows.
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 or click the Start button . Then, click the Settings icon (it looks like a gear). Go to System Storage
Step 2Find Temporary Files
Temporary files on your main drive often contain your old Windows installation data when you need to delete old Windows files to free up space. Open Settings , go to System, click Storage, and select Temporary files to scan your computer for these leftover installation folders.
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
Confirm deletion to permanently remove your old Windows version and free up drive space. Check the box for previous Windows installations in the cleanup tool and click Remove files. Keep in mind that once you confirm this step, you cannot go back to your old operating system.
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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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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