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

2025-04-30T18:34:31+00:00

It's after I copied the components file from the same laptop with Windows 11 also.
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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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