I know you'll be curious with the title of the post. The title itself is a warning guys, never try to see if it is true. I have run into or seen all these situations. #1 Fake virus pranks are fun. But, it doesn't always end happily. You probably be using batch programs. It is possible to format, shutdown, copy and do all kinds of crazy things with them. So, you have to know what you are doing. #2 Remove and add drive address from the Disk management, you have crashed the boot loader. The Windows will work normally, until you shutdown. But when you start your computer next time, it won't start up. You will have to use the Windows disc to repair it. #3 Formatting the system drive from another Operating System you installed side by side to Windows. This is similar to the above scenario. But one difference, you would have to reinstall Windows. Even if you had two versions of Windows, without bootloader none would work. You also have to be careful when repartitionin...