No, However in some cases, if your operating system refuses to start after changing the CPU, you may need to go into your BIOS and look for a setting that forces the BIOS to tell the OS to update the ESCD (Extended System Configuration Data)
It depends on your motherboard if it can automatically detect it. Some do, read your manual for your motherboard, you might have to change some jumpers on the board. It could also be a problem with your HAL, if windows has chosen a particular driver for your processor then it might need upgrading. It could also be faulty.
No.
No, However in some cases, if your operating system refuses to start after changing the CPU, you may need to go into your BIOS and look for a setting that forces the BIOS to tell the OS to update the ESCD (Extended System Configuration Data)
It depends on your motherboard if it can automatically detect it. Some do, read your manual for your motherboard, you might have to change some jumpers on the board. It could also be a problem with your HAL, if windows has chosen a particular driver for your processor then it might need upgrading. It could also be faulty.
NO, you must not!
No, it is not necessary to do that, as the OS is stored on the hard drive.