What is the 0x8007001F - 0x20002 error?

I had this exact error just now when trying to update a Windows 7 PC to Windows 10, but got round it by running the Media Creation Tool (accessible from the 'Download tool now' button that's a bit lower down the 'Download Windows 10' page as I write) instead of the 'Update now' button that downloads the executable that fails. Then when the Media Creation Tool runs, I selected the option to 'Update this PC now'.

A bit late for you SirElfman, but I hope that helps anyone else who encounters this error.

So I tried this, including running the download as an administrator, and I get a dialog box that says "C:\Users...\Downloads\Windows10Upgrade9252.exe is not a valid Win32 application."

I thought I would get this error if I was trying to run a 64-bit program on a 32-bit machine, but I verify (through Control Panel > System) that this is running the 64-bit Windows, so this has me even more confused.

EDIT: I have begun to realize there seem to be many pending and failed updates. Windows Update says it needs a Restart everytime after restarting, and about every third restart it seems to install a new update, with several failed updates in between. This prevents me for searching for updates because it says the last one needs a restart to complete. I'm thinking I'm going to have to take it back to them, give them a flash drive and tell them to save everything they need to keep, and upgrade it from scratch.

I'm willing to try anything else before going to the "nuclear" option, as I think they have LOTS of files they need to keep for the business.

Just back up your stuff then clean install Windows 10. Done.

No point in continuing to thrash here on this just to try to dirty upgrade.

Just back up your stuff then clean install Windows 10. Done.

No point in continuing to thrash here on this just to try to dirty upgrade.

I thought about that, but it is for friends and I'm not sure what's vitally important information. This is their only computer, and she helps him run his masonry business with it.

What would happen if I tried to backup the system now, and then restore after a clean upgrade? I'm guessing this probably won't work, because I think Windows 10 has a fairly different folder structure for personal files than Win7.

Hi SirElfman, I understand your situation. These problem often happens for corrupted internal system files or any error in registry, so it's better to upgrade your pc externally. But first I'll suggest to upgrade your pc with the help of media creation tool, this step you don't need a USB drive. Here are the steps.

1. Before you install Windows 10, make sure your PC meets the system requirements (https://www.microsoft.com/windows/windows-10-specifications).

2. Go to this official Microsoft website (

https://www.microsoft.com/en-us/software-download/windows10%20#34de222e-6944-44aa-8f45-8e96988880a4), select "Download tool," and then select "Run." You must be an administrator to run.

3. On the "License terms" page, you need to accept the license terms and select "Accept." Now, you'll be provided with a "What do you want to do?" page, select "upgrade PC," and click "next."
4. After downloading and installing the tool, it will help you set up Windows 10 on your PC. Remember, all Windows 10 editions are available when you select Windows 10 except for the Enterprise edition. For the Enterprise edition, you need to go to this link for more information (https://www.microsoft.com/licensing/servicecenter/default.aspx).
5. If you don't have a license to install Windows 10, you can always purchase a copy of  Windows 10 with this link (https://www.microsoft.com/en-us/windows/get-windows-10). If you're reinstalling an activated Windows 10 PC, you don't need a license or a product key. Your Windows 10 will automatically be activated with a digital license with your Microsoft Account.
6. Next, you'll be asked what you want to keep; select "Change what to keep" to set whichever you would like to do "Keep personal files and apps" or "Keep personal files only," or simply you can select keep "Nothing."
7. Save and close any open or running applications and files. And then select Install. It would take some time to install Windows 10, first, it'll show the download progress and then install. Remember that your PC will usually restart a few times, and make sure you don't turn off your PC during the upgrade.

After installation of Windows 10, it'll automatically restart and upgrade your PC. Let me know how it goes and I'll try to suggest a another solution.