Sandboxie is far better (or different - for its use case it is better). It doesnt use virtualization but rather hooks the APIs and redirects them to "in folder

Sandboxie is far better (or different - for its use case it is better). It doesnt use virtualization but rather hooks the APIs and redirects them to "in folder structure" where copy-on-write is used to keep local copy of registry, file system,... Far better and much less resource consuming aproach, its resource consumption is just a slight (I am talking about % or two) worse than native software, doing trampoline hook overhead is not worth mentioning, games will run at same speed. Imagine docker. You delete programs sandbox directory and all its traces are gone. I was its user for years (untill I have switched to linux due to some insane microsoft architectural decisions, like manifests and com junk within kernel32.dll) and was installing all the software into sandboxie, my base os was clean as "just installed". Give it a try, it is worth it. And now it is free :) (Disclaimer: 20+ years development in low level windows world, from DRM to reversing malware and writting drivers. Dumped the windows completely and continuing on linux (didnt switch due to linux beeing any better, just windows got worse) and freebsd.)