Enter the file name, and select the appropriate operating system to find the files you need:

All Windows OSWindows XPWindows VistaWindows 7Windows 8Windows 8.1Windows 10Windows 98Windows Server 2000Windows Server 2003 Windows Server 2008Windows Server 2012

There may be many causes for the failure of some file of Windows OS, but most of the causes are as follows:

• Abnormal shutdown of the system results in missing or corruption of the file
• The file is accidentally deleted or replaced by some software, or the original file is modified
• The file ismodified or destructed by viruses maliciously

Generally, if your operating system can run normally, and you can enter the operating system successfully, we suggest you do not reinstall the system, because it's too cumbersome and time consuming to reinstall system. You can first try to download normal file and place it back into the original folder, and the corresponding problems will be solved accordingly.

If your operating system is attacked by virus, for the first step, you should download some certain anti-virus software, and let the anti-virus software check the files of all hard disks in order to remove all viruses, and then you should download the normal files and placethem back in the original folder.