1. Open Command Prompt with Administrative Privileges:

   • To get started, open Command Prompt with administrative privileges. This is crucial for making system-level changes.

2. Take Ownership of the Folder:

   • Run the command: takeown /F C:\Windows.old\* /R /A

   • This command will grant ownership of the Windows.old folder and its contents to the Administrators group.

3. Change Permissions:

   • Run the command: cacls C:\Windows.old\. /T /grant administrators:F

   • This command sets access control permissions, ensuring that the Administrators group has full access to the folder.

4. Delete the Folder:

   • Run the command: rmdir /S /Q C:\Windows.old\

   • This final command will remove the Windows.old directory and all its contents.

Remember to be patient during this process, as it might take some time to complete.

Section 2: Rolling Back to Previous Windows Build:

If you're considering rolling back to a previous Windows build, it's important to note that this can be done within 10 days after an upgrade. Beyond that, you'll need to explore alternative methods.

Section 3: Cleaning Up System Space After Windows Update:

To ensure your system remains clean and efficient, it's a good practice to clean up system space after a Windows Update. Here are the commands to do just that:

1. Analyzing Component Store:

   • Run the command: DISM.exe /Online /Cleanup-Image /AnalyzeComponentStore

   • This command analyzes the component store for potential cleanup.

2. Starting Component Cleanup:

   • Run the command: DISM.exe /Online /Cleanup-Image /StartComponentCleanup

   • This command initiates the component cleanup process.

These steps can help you regain valuable disk space on your system.

Conclusion:

Managing your Windows system efficiently is essential for smooth performance, especially for developers and tech enthusiasts. Deleting the Windows.old folder and cleaning up system space after a Windows Update can help you maintain a tidy and responsive PC.

By following the steps outlined in this guide, you can reclaim disk space and ensure that your Windows system is running at its best. Remember, a well-maintained system can lead to a more productive and enjoyable computing experience.

Additional Tips:

Taking control of your system's file management and disk space can save you from performance issues down the road. Regularly check for unnecessary files and folders to keep your PC running smoothly.