Once you have installed Windows 7, its always good to have a system repair disk so that if you mess up with any configuration, you can use the disk to repair. If you have the Windows 7 boot disc, then repair disk may not be needed. But still it is always good to have a repair disk, just in case you need it anytime. To create a system repair disk, click on start menu and type “System Repair Disc” in the search bar and click enter. You can also open it using the run command “recdisc”.
This will open up the disc creation utility and you will need to insert a blank disc for creating the repair disc.
Once the disc creation is complete, you can use this disc to boot and repair Windows 7, in case mess up any configuration and want to repair files.