If you are using WSUS to do your updates I'd recommend checking out the following topics:
Registry keys that need to be scanned:
https://www.lansweeper.com/forum/yaf_postst6211_WSUS-Reports.aspx
Report:
https://www.lansweeper.com/forum/yaf_postst13064_WSUS-Updates-Needed-Failed-or-Successful.aspx
Otherwise, this report might work for you: https://www.lansweeper.com/forum/yaf_postst14142_Windows-update-report.aspx