- 1 year ago
How to check if a given KB is installed on Windows?
To check if a specific KB (Knowledge Base) update is installed on Windows, you can use the following methods:
Using Command Prompt:
Open Command Prompt as an administrator and use thewmic
command to query the installed hotfixes. ReplaceKB123456
with the KB number you're looking for.batchwmic qfe | find "KB123456"
Using PowerShell:
Open PowerShell as an administrator and use theGet-HotFix
cmdlet to query the installed hotfixes.powershellGet-HotFix | Where-Object {$_.HotFixId -like "*KB123456*"}
Using Registry Editor:
You can also check the Windows Update history in the Windows Registry. Open the Registry Editor (regedit) as an administrator and navigate to the following key:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\Packages
Use the "Find" function in the Registry Editor to search for the KB number.
Please note that some KB updates might be cumulative, meaning they include previous updates. In such cases, searching for the KB number might not return results if the cumulative update is already installed.
Keep in mind that using any of these methods requires administrative privileges. Additionally, always verify the accuracy of the results by cross-referencing with official sources or Windows Update history.
If you're managing multiple computers or looking for a more comprehensive way to manage updates, you might consider using Windows Update Services (WSUS) or a third-party patch management tool.