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How to Free Up Disk Space after Updating Windows


Windows updates are essential for keeping your secure and up-to-date, but they can sometimes consume significant disk space. This article provides a comprehensive guide on how to reclaim valuable storage after a Windows update.


Understanding Why Updates Take Up Space


The primary reason for post-update disk bloat is the windows.old folder. This folder contains your previous Windows installation, allowing you to revert to the older version if something goes wrong. While crucial for troubleshooting, it can consume a significant chunk of your storage.


Windows updates require disk space for several other reasons:

  • Downloading and Installing: The update files themselves need temporary storage during the download and installation process.

  • Backup Files:Windows often creates a backup of your previous system files in case you need to revert to the older version. This “Windows.old” folder can be quite large.

  • Temporary Files: Updates generate various temporary files that are used during the installation.

  • New Features and Improvements: Updates often introduce new features and improvements, which naturally require additional storage space.



Methods to Free Up Disk Space After a Windows Update:


  1. Disk Cleanup 

Disk Cleanup is a built in Windows utility that helps you remove temporary files, system logs and importantly the Windows.old folder.


  • Disk Cleanup is a built-in Windows utility that helps you remove unnecessary files.

  • Search for “Disk Cleanup” in the Start Menu and open it. 

  • Select the drive you want to clean 

  • Click “ Clean u system files” to include update-related files. 

  • Check the boxes for “Previous Windows installation” and other items you want to remove.

  • Click “OK” to start the cleanup process.


  1. Storage Sense:

  • Storage Sense is a feature that automatically frees up space by deleting temporary files and other unnecessary data.

  • Open “Settings” an go to “System->”

  • Turn on the “Storage Sense”  toggle switch. 

  • Click "Configure Storage Sense or run it now" to customize its settings.

  • You can choose to delete temporary files, empty the Recycle Bin, and remove files in the Downloads folder that haven't been opened for a certain period.


3. Uninstall Unused Applications:

  • Many computers come with pre-installed applications that you may not use.

  • Open "Settings" and go to "Apps" -> "Apps & features."

  • Sort the list by size to identify applications that are taking up the most space.

  • Uninstall any applications you don't need.

4. Delete Temporary Files:

  • Windows and other applications create temporary files that can accumulate over time.

  • You can manually delete these files by typing "%temp%" in the Run dialog box (Windows key + R) and deleting the contents of the folder.

5. Compress Files:

  • If you have files that you don't use frequently but want to keep, you can compress them to save space.

  • Right-click on a file or folder, select "Send to," and then choose "Compressed (zipped) folder."

6. Move Files to External Storage:

  • If you have large files that you don't need to access regularly, consider moving them to an external hard drive or cloud storage.

7. Disable Hibernation:

  • Hibernation is a feature that saves the current state of your computer to disk, allowing you to quickly resume your work.

  • However, the hibernation file can be quite large. If you don't use hibernation, you can disable it by opening Command Prompt as administrator and typing "powercfg /hibernate off."

8. Check for Large Files:

  • Use File Explorer to search for large files that may be taking up significant space.

  • You can use the search bar to filter files by size (e.g., "size: large").

9. Consider Upgrading Storage:

  • If you consistently run out of disk space, consider upgrading to a larger hard drive or SSD.

Important Considerations:

  • Windows.old Folder: The "Windows.old" folder contains your previous Windows installation. You can delete it to free up space, but you won't be able to revert to the previous version of Windows.

  • System Restore Points: System Restore points allow you to revert your system to a previous state. Deleting restore points can free up space, but it also reduces your options for troubleshooting problems.

  • Backups: Before making any major changes to your system, it's always a good idea to create a backup of your important data.

By following these methods, you can effectively free up disk space after a Windows update and keep your system running smoothly. Remember to choose the methods that best suit your needs and always exercise caution when deleting files or making changes to your system.


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