Windows 10: Download Failed: Blocked.

Hi my issue is on a browser namely Chrome, IE and Firefox.The problem I have is that I cannot download anything from these web services, instead it reports the error Download Failed: Blocked.Save image as, is greyed out, and hotkeys like ctrl+s are disabled / or just not functional.For weeks I have been searching the web to find "Fix's" hoping to restore the ability to download files again, but none of those methods have worked.A few of those methods involve:Changing data in regedit, inetcpl, disabling chrome and windows security, and yet none of these methods have worked in reinstating the op

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KB4025339 Fails Install 0x80070564

Thanks
I am trying Eagle 51's suggestions now. Windows Update troubleshooter found a bunch of errors and fixed all but one.The update is trying to download KB4025339 again. I'll see what happens. At step one troubleshooter finishes with one error unresolved "Potential Windows Update Database Error Detected-Not Fixed". Windows update stalled at 0%.

At step 2 same troubleshooter error. The KB finished a new download failed to install.
Did step 3 KB has downloaded but fails to install.

If Eagle's suggestion doesn't work I'll try EdTittel's suggestion

Tried bothe Eagle & Ed 's suggestions - do not work. Anyone else?

I have noticed that the latest update for my nvidia drivers has failed to update. Wondering about that!

 

Repeated windows 10 downloads failed.

Windows 10 download failed according to the updates list. Windows 10 downloads failed three times yesterday the 28th and four times today.

Updates list Windows 10 failed to download. I followed the suggested links to find out why, to no avail.

80240020 is the error code.

Obby

 

Windows 10 fails to update


When you finish testing the Avast suggestion, make sure that you restart your machine.

Then if the issue persists, please return to the trouble shooting list in post# 89

I think there are three steps that remain; the WU troubleshooter, reset WU components, and manual WU reset.