So you can boot your operating system
Repair MBR Boot Loader Windows XP, Vista, (7, 8, 8.1, 10) (SOLVED) Master Boot Record MBR SOLVED
What is the MBR? MBR stands for Master Boot Record and is the first sector of your hard drive that basically tells the BIOS where to look for the operating system on your computer.
If the MBR becomes damaged or corrupted for any reason, the operating system will not be able to load. You will normally see error messages such as:
These messages are definitely not fun, especially if you are not familiar with computers. Most people would automatically assume that their computer is dead! However, that is not true. Being in IT myself, I actually prefer these errors to other types of Windows errors. Why?