Written by Barry Dysert (last updated September 9, 2019)
Whenever you attempt a Windows Update installation, a behind-the-scenes update history log is modified. In earlier versions of Windows, this log is in a file called "C:\Windows\WindowsUpdate.log". Windows no longer directly produces a WindowsUpdate.log file in more recent versions of Windows. While the WindowsUpdate.log file is humanly readable, if available, it's encoded to the point where you're probably better off reviewing the Windows Update history through the Windows Update system. Follow these steps:
Figure 1. Windows Update history screen.
Windows shows the name of each update and, if you scroll the screen to the right, the date on which it was installed. When you're finished reviewing your updates, just close the Control Panel.
This tip (5646) applies to Windows 7, 8, and 10.
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