I downloaded CCleaner 4.05.4250 today. First, thank you for adding Open Office 4 to it. However, I also noticed "NVIDIA" is now listed under utilities. Since NVIDIA is my video driver and I didn't know what CCleaner would to do it or its effects on it, I unchecked it. So, what does CCleaner do to it? What's deleted?
Below is the exact cleaning code for NVIDIA as it is set up in CCleaner V4.05
[NVIDIA] ID=2357 LangSecRef=3024 Detect=HKCU\Software\NVIDIA Corporation Default=True FileKey1=%SystemDrive%\NVIDIA|*.*|REMOVESELF FileKey2=%SystemDrive%\NV|*.*|REMOVESELF
These folders are nothing more than the extracted files from the Nvidia installer. This extraction occurs when users download a nVidia graphics update and then run the installer. The installer extracts the files to the %SystemDrive%\Nvidia (or NV) folder. It then installs the new nVidia files and completes the update. Once the update is completed, the extracted files in %SystemDrive%\Nvidia (or NV) are no longer needed or used. Deleting them has no negative affect on a user's system.
If you feel uncomfortable with removing with file, back it up first on a CD or Flash Drive. Then let CCleaner remove the folder. Reboot your computer and you will find that everything still works just fine. I've done this when my computers had Windows XP, then Vista, then Windows 7, and now Windows 8.