Infected user profiles can spread to other profiles if they share the same system or network.
Infected user profiles can spread to other profiles if they share the same system or network.
You want to add an untrusted or suspicious app to a secondary user profile without interfering with your main account. Also, you mentioned issues with Windows Sandbox removing everything when closed. You need a method to run the program safely, keeping your important data secure.
Another person wouldn't safeguard you; instead, focus on utilizing a virtual machine.
Consider setting up an additional partition, adding a fresh Windows installation, and securing the remaining partitions using BitLocker.
Any malicious software operates with privileges matching the user who executed it. If it targets the operating system directly, it might gain higher-level access through system functions. Executing untrusted code inside a virtual machine is the safest choice.