6 minutes ago, Sauron said:
Depends on how you're virtualizing it and what sort of "hardware-harming" data you're talking about... I can't really think of any data that might harm your hardware to be honest.
Maybe something that overwrites/modifies the BIOS?
Not sure if there is still software out there that does that, but I've had it happen to me once years back.
Can it hurt your host OS?
I've been using VM's to test software I don't trust for 4+ years now, if you set it up correctly making sure there is no path that a potentially malicious program can follow you'll be fine.
Obviously don't login on email/Steam/etc in that VM; keep it as close to clean as possible. Making a snapshot right after all updates completed and the install is done makes this process of reinstalling the VM everytime you borked it up a lot easier.