Get installed hotfixes list in Windows

Here is a command: wmic qfe list full

you should see output like this:

C:\windows\system32>wmic qfe list full

Caption=https://support.microsoft.com/kb/2859675
CSName=xxx
Description=Update
FixComments=
HotFixID=KB2859675_Microsoft-Windows-CameraCodec-Package
InstallDate=
InstalledBy=NT AUTHORITY\SYSTEM
InstalledOn=9/25/2013
Name=
ServicePackInEffect=
Status=

Caption=https://support.microsoft.com/?kbid=2883200
CSName=xxx
Description=Update
FixComments=
HotFixID=KB2883200
InstallDate=
InstalledBy=NT AUTHORITY\SYSTEM
InstalledOn=10/24/2013
Name=
ServicePackInEffect=
Status=

...

  • On XP, go to the registry directly: 
    Instances of this class represent updates found in two places in the registry:

     

    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Hotfix

    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates

  • On Vista+, the registry doesn't exist any more. Try the WMI Class: Win32_QuickFixEngineering Class https://msdn.microsoft.com/en-us/library/aa394391(VS.85).aspx