Wondering the way to restore Windows 7 computer to factory settings without disk to get rid of some issues that happened to your computer? Restoring Windows computer to factory settings may be a dangerous behavior which will erase all of your important personal data and let your PC in an ingenious configuration just like the first purchase. So, to put in a disk for your Windows system is so significant. However, what if there is no installation disk? No worries. There will be detailed tutorials guide you ways to reset Windows 7 to factory settings without disk below.