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Question

Windows Update Error Code 646 (KB 975051,KB 976882,KB 977304)

Applies To:

Ideas:

  • Security Update for MS Office 2003( KB 975051), Security Update for MS Outlook 2003 Junk Email Filter (KB 976882), Security Update for Microsoft Works 8 (KB 977304)
  • 646
  • No recent changes you made to your computer
  • Tried to restart and reinstall, but still giving the same error messages.

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this question

Shuvo Banerjee

Shuvo Banerjee

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Answer
Have a look at this thread:
http://social.answers.microsoft.com/Forums/en-US/vistawu/thread/267bbf1c-0390-4034-aab1-45f4a4c4559a/

How do you fix the code 646?

Possibility: Windows Update agent file Wups2.dll is registered incorrectly and registry files that relate to the Wups2.dll file are missing.

Method 1: Register the Windows Update files

1. Click Start and then type notepad in the Start Search box.
2. Click Notepad in the Programs list.
3. Copy the following commands, and then paste them into the opened Notepad window:
REGSVR32 WUPS2.DLL /S
REGSVR32 WUPS.DLL /S
REGSVR32 WUAUENG.DLL /S
REGSVR32 WUAPI.DLL /S
REGSVR32 WUCLTUX.DLL /S
REGSVR32 WUWEBV.DLL /S
REGSVR32 JSCRIPT.DLL /S
REGSVR32 MSXML3.DLL /S
4. In Notepad, on the File menu, click Save As.
5. In the Save as type list, click All Files.
6. In the File name box, type register.bat.
7. Save the Register.bat file to your desktop.
8. Right-click the Register.bat file, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password or click Continue.
9. Try to install updates again.

http://support.microsoft.com/kb/958053
see: Method 1: Register the Windows Update files

http://support.microsoft.com/kb/326253
Method 5: Register Windows Update engine files

http://support.microsoft.com/kb/971058
How do I reset Windows Update components?

Method 2: Download and install the Windows Update agent

Windows Update Agent

How to obtain the latest version of the Windows Update Agent to help manage updates on a computer
http://support.microsoft.com/kb/949104

Information for network administrators about how to obtain the latest Windows Update Agent
http://support.microsoft.com/kb/946928

Click Start, click Run, click Browse, locate the file that you saved and then click Open.

Add the /wuforce switch to the end of the run command, and then click OK. For example, the run command may appear as the following: "C:\WindowsUpdateAgent30-x86.exe" /wuforce

Click Run.

Follow the steps to complete the wizard.

Important

To reinstall Windows Update Agent - download the relevant file from one of the links provided above and save it to a drive where Vista is not loaded because the file cannot be launched directly from the system root directory.

Click Start, click Run, type: "D:\WindowsUpdateAgent30-x86.exe /wuforce" (without quotations) and then press Enter to install the Windows Update engine.

Note: There is a space between "D:\WindowsUpdateAgent30-x86.exe" and "/wuforce"

D: is the drive where Windows is not installed (ie a flash drive or a 2nd hard drive etc)

TaurArian [MVP] 2005-2010 - Update Services
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TaurArian

TaurArian MVP
Community Star
Information provided "as is" with no warranties or guarantees.

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Answer
I just fixed this problem it related to a missing drive letter.  I downloaded a patch manually and tried to apply. It then stated that D: was invalid. It was as I removed the physical drive. 

I assigned a D: using disk managment snapin and VOLA they installed.

Hope it helps.
    • Child exploitation or abuse
    • Harassment or threats
    • Inappropriate/Adult content
    • Nudity
    • Profanity
    • Software piracy
    • SPAM/Advertising
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MikeHolley

MikeHolley

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Answer
Have a look at this thread:
http://social.answers.microsoft.com/Forums/en-US/vistawu/thread/267bbf1c-0390-4034-aab1-45f4a4c4559a/

How do you fix the code 646?

Possibility: Windows Update agent file Wups2.dll is registered incorrectly and registry files that relate to the Wups2.dll file are missing.

Method 1: Register the Windows Update files

1. Click Start and then type notepad in the Start Search box.
2. Click Notepad in the Programs list.
3. Copy the following commands, and then paste them into the opened Notepad window:
REGSVR32 WUPS2.DLL /S
REGSVR32 WUPS.DLL /S
REGSVR32 WUAUENG.DLL /S
REGSVR32 WUAPI.DLL /S
REGSVR32 WUCLTUX.DLL /S
REGSVR32 WUWEBV.DLL /S
REGSVR32 JSCRIPT.DLL /S
REGSVR32 MSXML3.DLL /S
4. In Notepad, on the File menu, click Save As.
5. In the Save as type list, click All Files.
6. In the File name box, type register.bat.
7. Save the Register.bat file to your desktop.
8. Right-click the Register.bat file, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password or click Continue.
9. Try to install updates again.

http://support.microsoft.com/kb/958053
see: Method 1: Register the Windows Update files

http://support.microsoft.com/kb/326253
Method 5: Register Windows Update engine files

http://support.microsoft.com/kb/971058
How do I reset Windows Update components?

Method 2: Download and install the Windows Update agent

Windows Update Agent

How to obtain the latest version of the Windows Update Agent to help manage updates on a computer
http://support.microsoft.com/kb/949104

Information for network administrators about how to obtain the latest Windows Update Agent
http://support.microsoft.com/kb/946928

Click Start, click Run, click Browse, locate the file that you saved and then click Open.

Add the /wuforce switch to the end of the run command, and then click OK. For example, the run command may appear as the following: "C:\WindowsUpdateAgent30-x86.exe" /wuforce

Click Run.

Follow the steps to complete the wizard.

Important

To reinstall Windows Update Agent - download the relevant file from one of the links provided above and save it to a drive where Vista is not loaded because the file cannot be launched directly from the system root directory.

Click Start, click Run, type: "D:\WindowsUpdateAgent30-x86.exe /wuforce" (without quotations) and then press Enter to install the Windows Update engine.

Note: There is a space between "D:\WindowsUpdateAgent30-x86.exe" and "/wuforce"

D: is the drive where Windows is not installed (ie a flash drive or a 2nd hard drive etc)

TaurArian [MVP] 2005-2010 - Update Services
    • Child exploitation or abuse
    • Harassment or threats
    • Inappropriate/Adult content
    • Nudity
    • Profanity
    • Software piracy
    • SPAM/Advertising
    • Virus/Spyware/Malware danger
    • Other Term of Use or Code of Conduct violation

TaurArian

TaurArian MVP
Community Star
Information provided "as is" with no warranties or guarantees.

Was this helpful?

Answer
I just fixed this problem it related to a missing drive letter.  I downloaded a patch manually and tried to apply. It then stated that D: was invalid. It was as I removed the physical drive. 

I assigned a D: using disk managment snapin and VOLA they installed.

Hope it helps.
    • Child exploitation or abuse
    • Harassment or threats
    • Inappropriate/Adult content
    • Nudity
    • Profanity
    • Software piracy
    • SPAM/Advertising
    • Virus/Spyware/Malware danger
    • Other Term of Use or Code of Conduct violation

MikeHolley

MikeHolley

Was this helpful?

1

Vote

Had a similar problem with KB975051 Windows XP
Did the following:
Clicked the annoying shield
Selected "Advanced installation"
Deselected KB975051
Clicked "Close"
In the messagebox that appeared selected "I do not wish to be informed about this update anymore" (Or words to that effect).

Ok problem not really solved but simptoms got away.
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Jczet

Jczet

Was this helpful?

Ran Method 1, did not work.
Ran Method 2, did not work.
Rebooted PC, paused anti-virus, ran Method 1.  KB975051 installed successfully.

I had 646 errors before, turning off Windows Firewall to do the patch install got me past those errors.
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Bryan H_

Bryan H_

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