Windows 10: Windows 10 Version 20H2 Will Not Install

I've been trying to install this for months now. It will download, then it says installing, will go to 100%, then fails and leaves this message, "Some update files are missing or have problems. We'll try to download the update again later. Error code: 0x800700dI have tried:Running the Windows Update troubleshooter.Deleting the files in the Software Distribution folder.Unistalling McAfee Anti Virus. That was a PAIN, thank you very much.Used DISM to scan and restore health.I have seen recommendations to remove all USB devices and I flat refuse to do that. It hasn't worked for people who ha

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Windows 10 version 20H2

The computer in question had Windows 7 on it and there was not an option to uninstall the 20H2 update. So I have reverted back to Windows 7. Is there a way to download and install Windows 10 version 2004? The games will work on that version but not the
20H2 version.

Thanks

 

windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx

 

Windows 10 version 20H2

I down loaded windows 10 version 20H2 and now many games I play on FB are VERY slow. The games worked ok on version 2004. Question if I down load version 2004 will it override version 20H2, or do I need to remove version 20H2 prior to downloading version
2004?

Thanks.