Windows 10: Windows 11 Update Error 0x800700c1 and no sfc

Windows 11 updating is broken. I did not install any new programs recently. Here's what I've tried:1 Simply updating my current build version 22H2 - fails due to Error code I've given, 0x800700c1.2 Windows update gives a repair option - "Reinstall your current version of Windows to repair system files and components" - fails.3 Ran the troubleshooter. Fails.4 Tried "sfc /scannow" in Administrator CMD window - gives the error: "windows resource protection could not start the repair service sfc"5 I'm trying to run it again in safe mode, but I need the bitlocker recovery key which I

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Error 0x800700c1 in windows 10

I have got the error 0x800700C1 and could not update KB3115259, KB3167685, KB3163018 & KB3149135 since a week ago. I tried both you two methods but the result was the same. I don't wish to follow hbja to go back to "Factory Setting". Can you help me sort
it out with other solutions?

 

Error 0x800700c1 in windows 10

Hi,

Thank you for posting your query on Microsoft Community.

Share this information to assist you better.

• Which build is currently installed in your computer?
• Do you have any anti-virus program installed?

The error code 0x800700C1 occurs because the Windows Authenticode Signature Verification function now verifies portable executable (PE) files.

I suggest you to follow the methods below and check if you can install the updates:

Method 1: Run Windows Update Troubleshooter

I suggest you to run the Windows Update Troubleshooter. Follow these steps to run Windows Update
troubleshooter:

• Press Windows key + W and type
  troubleshooting.
• Select Troubleshooting.
• Select View all on the top left corner.
• Click Windows Update troubleshooter.
• Follow the on-screen instructions to run the troubleshooter.
• Check if issue persists.

If the issue persists, follow next method.

Method 2:

I suggest you to check if the services responsible for Windows update is running. Refer to these steps:

• Press Windows key +R, type “services.msc”
• Locate the BITS, Cryptographic, MSI Installer
  and the Windows Update Services and check if it is running.
• If not, right click on the service and click start to start the service.

Hope this helps, let us know the status of the issue. We will assist you further.

 

Error on windows update - (KB4056892) - Errore 0x800700c1

Hi Luca,

A corrupted Windows Update components is one of the possible reasons why you are having the error code 0x800700c1 when installing the Windows Update KB4056892. For us to assist you better, kindly answer the questions below:

• Have you made any changes to your computer prior to this issue?
• What troubleshooting steps have you done so far?
• Do you have a third-party security software installed?
• Have you tried to use the
  Windows Update troubleshooter?

Meanwhile, you can follow the troubleshooting steps in this
link to resolve Windows Update issues.

We'll be looking forward to your reply.