Being unable to update Windows 7 is a serious security risk for a small business and may also lead to other operational problems. Windows Update is a great service, but is not flawless. At times, users need to reset it for it to work properly. Please note, that I do not recommend that you edit your registry yourself! Following the links in this article may lead you to suggestions for registry edits. If you edit your registry, do not have a backup and make a mistake, you may not be able to recover.