Error code 80244019 while installing Windows Update

The solution depends on your configuration, and theres some things you should check first:

• Ensure BITS service is running: net start BITS
• Ensure Windows Update service is running: net start wuauserv
• Ensure that your machine has a unique SusClientID (especially if the system is a clone). You can delte the key, run the 3 commands below, and restart the machine to regenerate it: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate
• Reset the authorization cookie on your client: wuauclt /ResetAuthorization /DetectNow
• Run wuauclt /ReportNow on your client to make sure it can sync with WSUS
• Ensure your current policies on your client is applied (the /boot is optional): gpupdate /force /boot

If you use a proxy server you should also:

• Ensure WinHTTP services is running: netsh start WinHttpAutoProxySvc
• Verify WinHTTP proxy settings are set correctly (my proxy settings are deployed via group policy): netsh WinHTTP import proxy source=IE

In my case the proxy settings on WinHTTP were not correctly imported, and manually forcing the import fixed the issue. I hope this may save someone else the headache it caused me. It should be noted you will have to use an Administrative Command Prompt to run the commands above.

I post this answer in the hope of helping some poor soul get unstuck since I have not seen this solution anywhere on the web :

Situation : W2012R2 Datacenter acting mostly as Hyper-V server, lost Windows Update from MS servers (not WSUS), for no reason I could identify. (The hosted installations could get their updates just fine).

I tried the various classic solution, as described on MS websites, with no luck (Fixit and all that)

I eventually put things back to work by :

1. WU - Change settings
2. Disable updating, uncheck both check boxes under the combo
3. when I validated, I unexpectedly got a working "check for update session" running (I had just disabled updates ? and it starts updating ???)
4. Installed the update provided (they were critical)
5. rebooted
6. set back to "install automatically" + "give me recommended updates the same way..."
7. it worked !!!

As far as I can diagnose the problem, it seems like the trouble was with "Give me updates for other Microsoft products when I update Windows", I had no "other products" and it may have confused WU ?

I guess I absentmindedly checked the box while reviewing some emergency security patch.

Anyway if i check it again, I'm back in trouble.

Worth a try anyway, its not a lot of work.