Step-By-Step process to delete "Windows.old" folder.
Article :: KB00016 The “Windows.old” folder is a system generated folder which gets created when you do an In-place upgrade of Windows Operating System from one version to another. This Windows.old folder contains all the old files and data from your previous installation, and that’s the reason it eats up lots of disk space. This folder gets created so that if required we can restore your system to the older version of Windows. It contains the Windows system files, installed