Question: how to check if a kb is installed using powershell?
Answer: First use the Windows Update tool. Second way – Use DISM.exe. Type dism /online /get-packages. Type dism /online /get-packages | findstr KB2894856 (KB is case sensitive) Third way – Use SYSTEMINFO.exe. Type SYSTEMINFO.exe. Type SYSTEMINFO.exe | findstr KB2894856 (KB is case sensitive)