update from 21H2

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update from 21H2

Gil Mac Innes 20

Windows 11 won't update from 21H2. windows update says you are up to date but also says you are missing important security updates.

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Answer 1

Hi, I'm John! I will help you with this.

The latest version is 24H2. If you’re not getting any updates through Settings, the best course of action is to perform an in-place upgrade to install Windows 11 24H2 while preserving your apps, settings, and data.

Here are the steps:

Go to the Windows 11 website: https://www.microsoft.com/software-download/windows11
Under "Download Windows 11 Disk Image (ISO)", select "Windows 11 (multi-edition ISO)".
Once the ISO is downloaded, right-click on it and select "Mount", then click on "Setup.exe".
You may be prompted by User Account Control, in which case, click on "Yes".
In the "Install Windows 11" dialog, click "Next".
Setup will check your PC and display a license agreement. Click on "Accept" to proceed.
Wait for the setup program to check for available free space.
On the "Ready to install" page, ensure that "Keep personal files and apps" is checked.
Click "Install" and follow the prompts.
Windows 11 will restart your device several times and lead you to the lock screen. Depending on the options you set, it will keep all your files, apps, and user accounts.

Performing this In-Place Windows 11 upgrade should help resolve the error you're encountering.

I really hope this information is helpful!

Should you need further information please let me know.

Click "Add comment" to let me know.

Regards,

John J.D.

Gil Mac Innes 20 Reputation points

2025-08-18T19:28:28.9066667+00:00

Hi

worked perfectly. The only issue was make sure you turn VPN off as that stopped the ISO download. Had to turn it off and clear cookies. After that is was a breeze. From 21H2 to 24H2 in one fell swoop. Everything still working as far as I can see.

Gil