Sandboxie-Plus

Downloaded a sketchy program you want to test but worried it'll scribble all over your system and leave junk behind? Sandboxie-Plus wraps it in an isolation layer—run the suspicious program inside a sandbox where none of its changes touch your real system. Delete the sandbox when done and every file and registry leftover it made vanishes. Browse inside a sandbox and even a malicious page's downloads can't contaminate the machine. The Plus edition is open source and free, with a choice of classic and new Qt interfaces.

Features

Isolated run: reads and writes confined to the sandbox, not the real OS.

Wipe in one click: delete the sandbox and all leftovers go with it.

Safe browsing: run the browser sandboxed so downloads can't infect the PC.

Open source: Plus edition free, classic or Qt interface.