Typically, PC errors occur when some entries in the registry are causing the computer to function in a way that is in-congruent to a particular operation.  The faulty instruction sets making the PC unable to perform are cause by corruption in the registry. While it is true a virus or spyware or other type of malware [...]

In the traditional sense, a corrupted registry is the result of software or device drivers being removed.  So, when any hardware is removed, the driver also would be removed and so registry corruption would result. However, there is more to it than just that.  When a driver or software program is upgraded, technically the old [...]