Secondly, restore your computer to undo system changes you have made.Firstly, you want to give or sell your computer to another, you can choose to factory reset Windows 7 so as to avoid privacy leaks.Or there are some other reasons that you need to restore your Windows 7 computer to factory setting. You may want to make sure that all of your personal information and applications are removed to protect your privacy in the case that you are planning to purchase a new computer and sell the old one. If you find that your applications don’t run the way you expect, and opening and saving files take longer than usual, you wouldn’t be the first to wish you could turn back the clock.
Over time, the accumulation of files, misconfigured settings, and other factors slow down performance and impacts programs. Your Windows 7 computer is rarely quicker and easier to use than the day you purchased it from the shop. Your computer can be restored to its factory settings if any of the methods are applicable to you in the post.
Restoring a computer to its factory settings will delete all personal files and any installed software applications or drivers that were not included in the original configuration of that computer.