The solution to Windows Update error 0x80240034 includes: 1. Check the network connection to ensure that you can access the Microsoft update server normally, try to open http://www.miracleart.cn/link/dfedb13505585ea91e2eb7edf64282a7; 2. If you are in the company or school network, run netsh winhttp reset proxy to reset proxy settings; 3. Use a wired connection instead of wireless, and close third-party firewall or antivirus software; 4. Run the command prompt as an administrator, stop the wuauserv, cryptSvc, bits, msserver services, rename the SoftwareDistribution and catroot2 folders, and then restart the related services; 5. Check the system time and locale settings to ensure that the time synchronization function is enabled; 6. Run sfc /scannow and DISM /Online /Cleanup-Image /RestoreHealth to repair system files. Following the above steps usually solves this problem.

Windows Update Error 0x80240034 Usually occurs during the update process, and the system prompts "Unable to connect to the server" or "There is a problem with the background Intelligent Transport Service (BITS)". This error will affect the normal installation of system patches, but in most cases it can be solved through some conventional means.

Check if the network connection is normal

The most common cause of this error is network instability or restricted access to Microsoft update servers. First, confirm whether your network can access external websites normally, especially Microsoft-related domain names:

• Try to open http://www.miracleart.cn/link/dfedb13505585ea91e2eb7edf64282a7 to see if the page can be loaded normally.
• If you are in a company or school network, you may be affected by proxy settings. You can try to run netsh winhttp reset proxy at the command prompt to reset proxy settings.
• Use wired connections instead of wireless to troubleshoot signal interference.

If you use third-party firewalls or antivirus software, it is also recommended to temporarily turn them off to see if you restore the update feature.

Reset Windows Update Components

If the network is fine, it may be that the Windows update-related service has failed. You can try to reset these services manually:

1. Open a command prompt (CMD) as an administrator.
2. Enter the following commands in turn and wait for each command to complete:
   • net stop wuauserv
   • net stop cryptSvc
   • net stop bits
   • net stop msiserver
3. Then run:
   • ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
   • ren C:\Windows\System32\catroot2 catroot2.old
4. Finally restart the update service:
   • net start wuauserv
   • net start cryptSvc
   • net start bits
   • net start msiserver

This step will clear the old update cache and rebuild the key folders, and many problems caused by temporary file corruption can be solved.

Check system time and area settings

Time out of sync can also cause SSL verification to fail, which raises the 0x80240034 error. Please make sure:

• The system time and time zone are set correctly.
• The automatic time synchronization function is enabled. You can check it in Control Panel > Date and Time.

You can manually synchronize the time once:
Right-click the time in the taskbar → "Adjust date/time" → "Internet time", click "Change settings" → "Sync with Internet time server".

Update or repair system files

If none of the above methods work, you can try to fix potential system corruption through the system file check tool:

• Open the administrator command prompt and run:
  • sfc /scannow
• If you find that the damage is not repairable, run again:
  • DISM /Online /Cleanup-Image /RestoreHealth

These two tools can repair system core files and help solve deep update failure problems.

Basically these common ways of dealing with it. Although it seems that there are a lot of steps, most of the operations are standard processes, and the problem can be basically solved by doing it in order.

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