hard drive
Mostly, they are in a folder called Program Files in C:\\ drive.
Physical media can be described as actual physical software or computer programs that can be installed onto a computer. With new technology, many people are moving away from physical media and using downloadable versions instead.
So programs written for the older processor can be used on the new one without modification.
roll back the driver
Most software comes 'compacted' on the disk - it needs 'unpacking' before use. Additionally, when new programs are installed on the hard-drive - changes are made to the computer's registry - so the computer knows where on the disc the program is located, and connections are made to other programs (printer drivers for example). Installing simply sets the program up for use by Windows and other relevant programs. Simply copying the program to the hard-drive will not necessarily allow it to work correctly.
Nope
Software are programs installed on the computer that alter the way it works or adds on new features, as opposed to hardware, which are objects that interact with the computer, such as external drives and video cards.
If you have just installed a new DVD drive and its drivers, it should appear in 'My Computer'. This holds for Linux and Windows OS's.
if you installed a new motor you have to unhook the battery (about 15 to 20 min.) so the computer can pick up on the new part installed. then work the motor from drivers side.(if passenger side was installed)
Proper drivers are not installed
A computer will not accept a new RAM that has a different voltage than the factory installed RAM cards.
It actually depends not in time, but rather on - how many installations of new programs, - how many uninstallations of installed programs, - how big and system intensive your installed programs are, - how bug-free your installed programs and installations attempts are, - how many virus infections have made it through your systems, - how many virus cleaning have been made by your antivirus program, - how successful the virus cleaning made by your antivirus program is, - how complete and thorough the updates of your installed programs are, and many more you can expand by yourself. The point is, if you feel your system is already too heavy and a lot more slower than it used to be, that is when it should be re-installed. A reformatting might not be necessary, instead, deletion of the OS's folder completely and a file system check and fix is a must.