So instead of cleaning up my windows install before I upgraded to 10. I did the upgrade and ran cleanmgr.exe. However, there is still a Windows.old file with lots of fun stuff inside. I cannot just delete the folder because it is protected. I have Windows 10, AVG, CPU-z and Chrome installed and my Hard drive is reporting that i have over 50 gigs with of space being used.... This seems quite excessive for what I have installed. Is this normal or not?