Windows update failed (Install error 0x800703f1)

Anonymous

So ive had this problem for a long time now.. Windows update will not install and my firewall will not turn on (grayed out). I did a scan in the CMD and it says there is missing or corrupted files. I tried to do a ton of fixes on it an nothing is working. Also my firewall says "update your firewall settings but when i try to click on the use recommended setting its shoots me another error code (0x8007045b). I have a feeling that those 2 problems are connected can anyone help me?

Note: Ive also tried these in the powershell but that didnt work either.

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
Ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
Ren C:\Windows\System32\catroot2 Catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver

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133 answers

Anonymous

2025-04-30T18:32:30+00:00

sure, let see
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Ramesh 181.2K Reputation points Volunteer Moderator

2025-04-30T18:18:09+00:00
Hello Ramesh Srinivasan

I have the same issue with Windows Update.

Can you help me fix it?

Thanks in advance.

Regards,

Dima

Hi Dima,

From the admin Command Prompt, please run the following commands:
```
reg load HKLM\COMPONENTS c:\windows\system32\config\components

reg load HKLM\DRIVERS c:\windows\system32\config\drivers
```
One of them might throw an error code. Post the screenshot here.
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Anonymous

2025-04-30T18:13:35+00:00

Hello Ramesh Srinivasan

I have the same issue with Windows Update.

Can you help me fix it?

Thanks in advance.

Regards,

Dima
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Ramesh 181.2K Reputation points Volunteer Moderator

2025-04-14T04:01:25+00:00

Actually after running the MCT, and installing a clean update everything is perfect! No more error codes, windows is fully up to date, and now I can upgrade to windows 11 as well! I re-ran the component scanner and no more errors. This is amazing!

Thank you SO MUCH for all your help Ramesh!

@Lirilei

Glad to hear that. Thanks for the feedback.
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Anonymous

2025-04-13T23:50:43+00:00
It seems that the original error is fixed! I still get told there's 127 corruptions, 131 inconsistencies, and 131 warnings when I run the component scanner...and now windows update gives me a different error. But I got a few things installed anyhow. I'll be looking into how to do a repair installation tomorrow (I've not had the time today due to family obligations)

Thank you for all your help!

Hi,

May I know what the new error is?

By the way, here's how to repair install Windows 10.

Download Windows 10 Media Creation Tool (MCT) from this link:

https://go.microsoft.com/fwlink/?LinkId=2265055

Run MCT and accept the license agreement.

Click "Upgrade this PC now". This starts the repair installation.

Your apps, settings, and files will be kept by default during a repair install/in-place upgrade.

See also:

Reinstall Windows - Microsoft Support:

https://support.microsoft.com/en-us/windows/reinstall-windows-d8369486-3e33-7d9c-dccc-859e2b022fc7
Actually after running the MCT, and installing a clean update everything is perfect! No more error codes, windows is fully up to date, and now I can upgrade to windows 11 as well! I re-ran the component scanner and no more errors. This is amazing!

Thank you SO MUCH for all your help Ramesh!
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