If you are wondering if Windows 7 successfully completed the last update, you need to know where the Windows update log file is in Windows 7
C:\Users\(username)\AppData\Local\Microsoft\Windows
The Windows update log is in the Windows AppData folder.
1. Step Open the explorer
2. Step Go to C:\Users\sOliver\AppData\Local\Microsoft\Windows (replace username)
3. Step Open the file WindowsUpdate.log with a text editor for the latest log entries
You might have to unhide folders to actually see the AppData folder in your user folder.
You might end up finding error messages or useful clues why your last Windows update files
Here are a few lines of my log
2011-11-09 03:03:29:722 14548 379c CltUI AU client got new directive = ‘Reboot Warning’, serviceId = {7971F918-A847-4430-9279-4A52D1EFE18D}, return = 0
2011-11-09 03:03:35:048 14548 379c CltUI AU client got new directive = ‘Reboot Pending’, serviceId = {7971F918-A847-4430-9279-4A52D1EFE18D}, return = 0
2011-11-09 07:03:35:051 14548 379c CltUI AU client got new directive = ‘Reboot Warning’, serviceId = {7971F918-A847-4430-9279-4A52D1EFE18D}, return = 0
2011-11-09 07:03:38:407 14548 379c CltUI AU client got new directive = ‘Reboot Pending’, serviceId = {7971F918-A847-4430-9279-4A52D1EFE18D}, return = 0
2011-11-09 11:03:38:407 14548 379c CltUI AU client got new directive = ‘Reboot Warning’, serviceId = {7971F918-A847-4430-9279-4A52D1EFE18D}, return = 0
2011-11-09 11:03:55:706 14548 379c CltUI AU client got new directive = ‘Reboot Pending’, serviceId = {7971F918-A847-4430-9279-4A52D1EFE18D}, return = 0
2011-11-09 15:03:55:704 14548 379c CltUI AU client got new directive = ‘Reboot Warning’, serviceId = {7971F918-A847-4430-9279-4A52D1EFE18D}, return = 0