1. If you run the below command this will create a HTM file in the root of c with all the hotfixes(a small install of WMI will be done automatically, I am noting this since this may require a CR to okay the installation)
wmic qfe list full /format:htable >C:\hotfixes.htm
2. Windows also stores all the HF information in the registry. If you export the this key to a txt file we can compare these as well
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\HotFix]