This tool allows you to cleanup unnecessary file on a windows server 2012.
Enabling "Disk Cleanup Utility"
1.Open "server manager" -> Add roles and features.
2.Select installation type -> Choose role base or feature based installation to install it to local machine -> then click Next.
3.Click "next" all the way to features. Locate "User Interface and Infrastructure". Select "Desktop Experience" then click Add feature button.
4.Reboot the system.
Now we can use this utility by right clicking on any drive ->properties-> Disk cleanup.
Select the files to be deleted and then click ok.
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