Error code 80070020 Windows Update.

Question

I recently updated windows vista, and everything updated with the exception of one update which continually give me the error code 80070020.  The specific update is KB2892075.  i disabled all nonwindows services per suggestions received in the community board, but that did not solve the problem.  Is this a virus? malware?  not really sure how to solve this, because my other updates had no issue.  any ideas? seems to stop updating at the 11% mark everytime.

Answer 1

I had the same problem and after going through all the troubleshooting one said to disable antivirus and try installing again.  Actually worked.  Just don't forget to enable your antivirus again.

Answer 2

Get More Details On the Error

To decode 0x80070002. The 0x means it's a hexadecimal number, the 8 means error, the first 7 means it a windows error, and the rest of the number, 20, is the actual Windows error.

To look up the error we need it in decimal format. Start Calculator (Start - All Programs - Accessories - Calculator) and choose View menu - Scientific, then View menu - Hex. Enter **20.**Then View menu -  Decimal. It will say 32.

Start a Command Prompt (Start - All Programs - Accessories - Command Prompt) and type

net helpmsg 32

and it will say

The process cannot access the file because it is being used by another process..

Use Notepad to search forFATAL and and the specific error code (eg, 80070020) in C:\Windows\Windowsupdate.log.

Run Microsoft's Fixit

Microsoft have a range of automatic programs to fix common problems. For Windows Update problems see

http://support.microsoft.com/mats/windows\_update/en-us

For the full list visit

http://support.microsoft.com/fixit/en-us

When you choose to download it, choose the option to run on another computer. Then you can save it to your harddisk in a folder. Open the folder, open the folder Fix it Portable, and run Launch Fix It. It will contain all 27 Fixits.

Does that help Windows Update.

System Update Readiness Tool

Also run the System Update Readiness Tool

For 32 bit Windows

http://www.microsoft.com/en-us/download/details.aspx?id=504

For 64 bit Windows

http://www.microsoft.com/en-us/download/details.aspx?id=1540

To see results click Start - All Programs - Accessories - Right click Command Prompt and choose Run As Administrator. Type (or copy the below line and one blank line underneath and right click in the command prompt window and choose Paste).

notepad %SYSTEMROOT%\Logs\CBS\CheckSUR.log

Repair and Defrag the Database

Start - All Programs - Accessories - Right click Command Prompt and choose Run As Administrator. Type (or copy and paste by right clicking in the Command Prompt window and choosing Paste).

esentutl.exe /p c:\Windows\SoftwareDistribution\DataStore\DataStore.edb

esentutl.exe /d c:\Windows\SoftwareDistribution\DataStore\DataStore.edb

Fix the Service

Download wuauserv_Vista_32.reg from https://skydrive.live.com/redir?resid=E2F0CE17A268A4FA!121

Click Start - All Programs - Accessories - Right click Command Promptand choose Run As Administrator. Type Regedit and File menu - Import and import wuauserv_Vista_32.reg.

Reboot

Click Start - All Programs - Accessories - Right click Command Promptand choose Run As Administrator. Type (or copy the below lines and one blank line underneath and right click in the command prompt window and choose Paste). This will start the dependent services in the correct order.

If you get an error message you can copy it by right clicking the window, choosing Mark, selecting the text, and press Enter.

sc start DCOMLaunch

sc start RpcSs

sc config wuauserv start= auto

sc start wuauserv

sc config trustedinstaller start= demand

sc start trustedinstaller

sc config COMSysApp start= demand

sc start COMSysApp

sc config BITS start= demand

sc start BITS

sc config slsvc start= auto

sc start slsvc

sc config EventLog start= autosc start EventLog

--

Answer 3

As this is the only update giving you grief, have your tried a manual download of the update and installing:

http://search.microsoft.com/en-us/DownloadResults.aspx?q=KB2892075

32-bit and 64-bit Windows: frequently asked questions

http://windows.microsoft.com/en-us/windows7/32-bit-and-64-bit-Windows-frequently-asked-questions