Sounds like a segment from an old show called "The Screen Savers". The guy installed every version of Windows up to XP, some distros of Linux I can't remember, and maybe some variants of BSD. He used XOSL to boot and manage each OS partition.
That... doesn't really work anymore. Somehow, Windows will sneakily reenable that service to download more crap you don't need (for example, this recent feature update). 3-4 gigabytes of bandwidth needlessly wasted.
I've created a scheduled task that ensures that the WU service is OFF and...
2nded. Ever since Vista (I think), it's not necessary to reinstall the OS from scratch after moving to a different board. At minimum you'll need to update some drivers (might be necessary to boot into safe mode first to remove everything from the device manager) and reactivate Windows, and that...
Server 2008 R2 Core had the option to disable WOW64 support. I think it was the only Windows SKU that had this option (can't speak for Servers 2012/2016 editions and their derivatives). Then again, you're stuck with a cmd or powershell-only interface, so you're SOL if you want a 64bit-exclusive...
So I did this trick with a few Win7 keys I've had laying around for the past couple of months. Out of curiosity, I reverted my Windows 10 VM again today (post-free upgrade period) and used one of the older Windows 7 keys I "pre-activated." Sure enough, I got my digital entitlement again once I...