There are several ways to transfer boot sector files from one disk to another. The simplest of them is to use a special recovery disc or a regular system distribution kit on a DVD.
Necessary
Windows 7 installation disc
Instructions
Step 1
Insert such a disc into the drive tray, then restart your computer.
Step 2
When the computer boots up, press the Delete button to enter the BIOS SETUP menu. Here you need to go to the Boot section and set the CD / DVD-ROM as the first boot source. Press Esc to exit the Boot partition. To reboot and save the settings, press the F10 key. In the dialog box that appears, click Yes and then Enter, or Y and Enter.
Step 3
When you restart your computer, it will boot from floppy media. At this stage, you will need to go to the "Recovery environment" section. After scanning the hard drives and operating systems installed on your computer, run Startup Repair. The program will perform all the necessary operations by itself, you just need to restart your computer.
Step 4
A recovery disk is created only as a last resort, when there is no original system distribution kit on a floppy disk. With a standard installation disc, you can boot and run the necessary operations.
Step 5
To create a recovery disc, you must open the "Control Panel" from the "Start" menu. In the window that opens, double-click on the "Backup and Restore" icon, on the left side of the window, click on the "Create a system recovery disc" link. Insert a blank disc into the drive tray, recording will start in a few seconds. When the writing process is complete, the drive tray will automatically be pulled out. Slide it back in to check if the drive is working properly.