Windows 10: Windows Update runs "Checking for updates" for a long time, then fails with error 0x800705b4

Hello,I'm having an issue with Windows Update.When I go into the Update settings and click the "Check for updates" button, Windows Update just keeps running the "Checking for updates..." process for a very long time.Eventually, it stops and shows the error message that you can see in the attached screenshot Error code: 0x800705b4.How can I fix this problem?Thank you for your help.

:)

 

0x800705b4 Update Hangs, Update Troubleshoot Hangs, sfc /scannow Hangs

Hi, some history please (so often omitted by posters):
- when did you last successfully update this PC? (I.e. how new is this problem, noting you're on 1909).
- have you done anything specific to block Windows Update to stay on 1909?

If you look at your Update History (screenshot please) that will show which update (or feature update- upgrade) is failing.

Error 0x05B4 is a timeout error. The error code is most likely related to Windows Defender
https://answers.microsoft.com/en-us/...8-9b008f20da5b

Try step 4 here and report the result:
How to fix Windows Update error 0x800705b4 on Windows 10

However the other symptoms suggest some basic checks are needed.

Turning to SFC /SCANNOW hanging, please run

chkdsk c: /scan
from an admin command prompt and post the summary (not all) result.

Please also download and run Hard Disk Sentinel (trial) - SSDs too- and post the result like this:

 

Windows Updates failed to instal

I'm not sure how differant XP media center Edition is but you could clear the history \ cache if these folders are there.

Step 1 Register DLL files.

=================

By trying this step, we can check if the update engines are working properly.



1. Close all instances of Internet Explorer.

2. Click Start and Run, type "Regsvr32 atl.dll" (without quotes) in the Open box and click OK.



Note: There is a space between regsvr32 and atl.dll



3. Similarly, one by one, register the files listed below:



Regsvr32 msxml3.dll

Regsvr32 wuapi.dll

Regsvr32 wuaueng.dll

Regsvr32 wuaueng1.dll

Regsvr32 wups2.dll

Regsvr32 wucltui.dll

Regsvr32 wups.dll

Regsvr32 wuweb.dll

Regsvr32 qmgr.dll

Regsvr32 qmgrprxy.dll

Regsvr32 jscript.dll



Note: If you encounter errors while registering any of these files then skip that file and continue with the next one.



If the issue persists, let's move on to the steps below to verify Windows Update services and temporary folders.



Step 2 Verify the relevant Windows Update services.

=========================================

1. Click Start->Run, type "services.msc" (without quotation marks) in the open box and click OK.

2. Double click the service "Automatic Updates".

3. Click on the Log On tab, please ensure the option "Local System account" is selected and the option "Allow service to interact with desktop" is unchecked.

4. Check if this service has been enabled on the listed Hardware Profile. If not, please click the Enable button to enable it.

5. Click on the tab "General "; make sure the "Startup Type" is "Automatic" or "Manual". Then please click the button "Stop" under "Service Status" to stop the service.

6. Then please click the button "Start" under "Service Status" to start the service.

7. Please repeat the above steps with the other services:



Background Intelligent Transfer Service

Event Log

Remote Procedure Call (RPC)



Note: Event log service is enabled on all of the hardware profiles; this service does not have an option to enable or disable on certain hardware profile.



If it still does not help, let's proceed to step 3.



Step 3 Reload the Update temporary folders.

===================================

One possible cause is that the temporary folder for Windows Update is containing corrupted files. Let's erase all the files there to get the system clean.



1. Click Start, Run, type: cmd and press Enter. Please run the following command in the opened window.



Net stop WuAuServ



2. Click Start, Run, type: %windir% and press Enter.

3. In the opened folder, rename the folder SoftwareDistribution to Sdold.

4. Click Start, Run, type: cmd and press Enter. Please run the following command in the opened window.



Net start WuAuServ



Please test the Windows Update website and let me know the result. If the issue persists, to clarify the issue and provide more accurate troubleshooting steps, please assist me in collecting the following information.

 

Error 0x800705b4 while updating Windows 10

Hi Fred,

To resolve your concern about the Error 0x800705b4, we suggest that you follow the steps below:

• Reset Windows Update Components
  to resolve error codes while updating your version of Windows.
  
• Use
  DISM tool to fix some Windows corruption errors.
  

Let us know how it goes.