sandbox is quite literally a vm as well, it is a Microsoft Hyper-V VM and if you turn on sandbox you turn on Microsoft Hyper-V as well

it may affect other software that use a vm like bluestacks or other vm software like virtualbox or vmware

the benefits of sandbox would be it is faster to boot and is self resetting

but a fully featured vm would allow you to save stuff

you may use web scanners such as

https://www.virustotal.com/gui/home/upload
https://metadefender.opswat.com/
https://analyze.intezer.com/

However, most of them have small file upload size limits and quite a few pieces of malware today intentionally make themselves be larger than those limits to avoid being uploaded to these scanners

and what you likely want based on your question is

https://app.any.run/

a web sandbox that logs every single action the program has done
but dont just blindly accept the MALICIOUS verdict at the end,  some suspiscious activities will make it flag as malicious even if it isnt

now again, unfortunately free tier is limited to windows 7 32bit, which a lot of software may refuse to run on

and unfortunately, paid tiers for these services are usually VERY expensive as they expect you to be a malware analyst/researcher/professional, not a causal user checking a file

By the way, a side issue.

Glad that I have upgraded to Win 11. Find it cleaner and easier to use than Win 10. The upgrade took 3 hrs but was smooth without any input from me. They used the settings in my Win 10.

Try it and see.

They relocated the shutdown button. So have to remember that.

By the way, can clean up a drive via Explorer - properties in Win 10. Now cannot. How now?

Thanks.

you search for clean up

the legacy clean up program will appear,
or go to System > Storage, all the storage option are there

Not entirely true as i can run 3 at the same time. Hyper-v enabled too

well I guess it's better now but back then bluestacks wanted me to uninstall and reinstall a made for hyper-v variant of bluestacks