If you plan to use the fine tuning controls in Windows Live Photo Gallery in Windows 8, with a Nvidia graphics card, be careful - doing so may cause a driver crash. On my system, the desktop does not redraw correctly and I'm stuck at a black screen. Workaround in that case is to RDP into the affected computer and hope the desktop shows up there (try closing and opening a few RDP sessions, and hitting Start).
There's an existing thread on this issue: http://answers.micro...m=1349584437958
If you look up the driver crash caused by Photo Gallery in Reliability Monitor, it does show that Microsoft is aware of this issue.
Further testing reveals that it appears to be the Shadows slider causing the crash. No crashes occurred with Brightness and Contrast.