By skyforbes 
Every Windows operating system comes pre-installed with a Windows Update tool, which works automatically. This software starts whenever you boot the computer, and continuously checks for new updates or upgrades. It keeps your PC updated with latest security patches, driver updates, software upgrades and OS fixes. However, problems arise whenever this program starts throwing errors.
Any active Windows-based PC user may have faced this error at least once in their life. Most of the times, it is fixed by clicking on the “Turn on Windows Update” button in the Action Center. However, if you are unable to solve this issue, then take a look at these four easy ways to fix it.
1> Restart your PC
Most of the times, this error arises when the Windows Update service does not start automatically during startup. In such cases, you can start the service easily by rebooting the PC. Many professional services like Microsoft GuruAid support recommend their clients to restart the PC, whenever such issue arises.
2> Restart the Windows Update Service through Services.msc
This method is used by computer-savvy people, who have substantial knowledge on fine-tuning Windows OS. Whenever an Update Error balloon pops in the taskbar, you can restart the Windows Update Service by navigating to Microsoft Windows Services section through the Run prompt.
3> Avail Professional Tech support
This method is recommended for not-so-savvy computer users. Professional tech support services providers like GuruAid will solve this issue within minutes, without changing any other setting on your PC. This is one of the easiest methods, which many computer users around the world use to fix computer errors.
4> Restore the Files
Windows Update Service can halt or malfunction if its files get corrupt by malware. At such times, you can restore the original files and settings by repairing the Windows using the bootable OS disk, or by typing sfc.exe/SCANNOW in the Run prompt.