worked great for me on several machines. Will even run in internet without any activation for -I believe- unlimited time. I purchased some of the above mentioned keys from Ebay, worked slick any time.
I even upgraded a small 2008 Lenovo laptop that came with Vista new, but never ran good due to bloatware issues. I put XP on it and used it that way even when XP was obsolete long since, no issues.
It runs even smoother with Win 10 and there are no driver issues, some modern websites drive it to it's limits though. That was more a fun project to see if it could be done.