How to Repair a Windows 7 Installation
Windows 7 is a great improvement over its successor, Windows Vista. However, that does not mean that it is without its flaws. Like all computer systems, Windows 7 can suffer serious damage from a number of things including malware, user error and hardware failure. In these situations it is essential to be able to quickly and effectively repair and restore your system to a functioning state. Luckily, repairing Windows 7 can be done in a few different ways and is not terribly complicated.
Repairing a Windows 7 PC
Scan your PC for malware using the malware tool of your choice. Norton and McAfee make excellent anti-malware tools if you do not already have one; if you do not have one, it is recommended that you install one immediately. The scan can take some time, depending on your computer's RAM and processor, and the size of your hard driver or drivers; the more storage space on your computer, the more the tool has to scan. If the scan detects an infection, take the recommended action.
Save your data and close any applications you may have running. You should also back up an essential data to some type of removable media, such as an external hard driver or DVD, if you can.
Insert your Windows 7 operating disc. If you do not have one, contact your PC's manufacturer for one; most manufacturers will send you one at a small shipping fee, but you will have to wait as long as 10 days before you actually receive the disk.
Restart your computer with the disc in the drive. When your computer restarts, you will be presented with a menu that contains several options, one of which is "repair." Click on "repair" and let the repair utility run. In most cases, this will fix whatever problem your system is having; however, it can take some time, so be sure to set aside at least 20 minutes for the process to complete. Once the process is complete, you will be prompted to remove the disc and your PC will restart.
Log in to Windows. Try to replicate the problem you are having; it should no longer occur and your PC should be repaired.