I am getting the message
An exception occurred while trying to run "C:WINDOWS\system32\NvCpl.dll, NvStartup".

Also my system is crashing a lot and getting blue screen. Can anybody advise please if the machines worth saving!

This error is related to a badly installed nvidea graphics driver.

The latest ones can be found here: NVIDIA Driver Downloads - Automatically Detect NVIDIA Products (http://www.nvidia.com/Download/Scan.aspx)