Easy ways to query hot fix information
If the computer is connected to the Internet, you can go to Windows Update Online at http://windowsupdate.microsoft.com. After scanning your system, the website will tell you what hot fixes you do not have. In the %windir%, you can find a number of log files with names beginning with “KB” and followed by six digits, e.g. KB870764.log, KBxxxxxxUninst.log. KBxxxxxx.log – Contain installation information of the hot fix. If you can find this file and there are no errors in the log, then the hot fix in the file name has been installed. KBxxxxxxuninst.log – Contain uninstallation information of this hotfix. If you can find this file and there are no errors in the log, then the hot fix KBxxxxxx has been uninstalled from your system. In addition, you also can find uninstall folders of the hotfix in %windir% (with names like $NtUninstallKBxxxxxx$) and %windir%\$hf_mig$ (with names like KBxxxxxx). Generally you can uninstall the hot fix from that folder by running spuninst.exe. Cmd ...