Remove Windows.old after using in-place upgrade method on Windows Server 2012 R2 Preview

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After obtaining Windows Server 2012 R2 Preview, I thought of upgrading my lab environment. Upon completing Server 2012 R2 Preview upgrade, I noticed that there’s a Windows.old folder in my System drive which takes around 20GB of space.

now that I have already upgraded in to Server 2012 R2 Preview and confirmed that all my applications / file are available, I decided to delete Windows.old folder.

Best way to do this, is to use Disk Cleanup Tool.

Start –> Search for “Disk Cleanup” and run this program (If you cannot to locate this program you need to install Desktop Experience Features

On driver selection, select your System Drive

Now you will notice that there’s “Previous Windows Installations & Windows Upgrade log files” options available on Disk Cleanup. you can select both of them and click “ok”

you will get a prompt to confirm whether you want to delete. Hit “ok” and proceed.

this will clear windows.old folder and free up disk space on your system drive.