I've successfully gone back to a Restore Point in Windows XP x64 on bootcamp. Haven't tried with 7, but I can't see any reason why it wouldn't. Perhaps the problem is with your Windows install?

As soon as you click the OK button, XP will delete old restore points to bring the size down to your requested disk space setting — and it’ll stay there, continually swapping out old restore points as ...

System Restore is a valuable safety feature, but it doesn't need to take over your hard drive. By checking how much space it's using, deleting old restore points, and setting a reasonable storage ...

The System Restore feature has been a part of Windows for decades. In Windows 10 it's still useful for recovering quickly when a new app or device driver causes instability. System Restore works by ...