>>I just spent 6 plus hours upgrading a very fast machine from Windows 8 to Windows 10
>>
>>Terrible, terrible work on the part of the people who put that upgrade package together, but that's not the reason for this post.
>>
>>I have a folder with 90gb of stuff in it called windows.old.
>>
>>I can certainly use that space.
>>
>>Do I need that folder?
>
>http://www.howtogeek.com/223821/what-is-the-windows.old-folder-and-how-do-you-delete-it/
>
>Seems it's automatically deleted after a month.....

Thank you, Viv

I put it on a USB drive in case I need it.