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  • Question

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    I made the mistake of holding down the power button to shut down my computer, and now whenever I try to log on I get the "An unauthorized change has been made to your software" error message with the usual (learn more online) or (close) the latter takes me back to the log in screen.  What can I do to fix this

     

     

     

    Edit: here's my diagnostics Diagnostic Report (1.7.0066.0):
    -----------------------------------------
    WGA Data-->
    Validation Status: Genuine
    Validation Code: 0
    Online Validation Code: 0x80070426
    Cached Validation Code: N/A, hr = 0x80070426
    Windows Product Key: *****-*****-27HYQ-XTKW2-WQD8Q
    Windows Product Key Hash: U8YEZzymoD4DMyaMb32rPrNIS90=
    Windows Product ID: 89578-OEM-7332157-00061
    Windows Product ID Type: 2
    Windows License Type: OEM SLP
    Windows OS version: 6.0.6000.2.00010300.0.0.003
    CSVLK Server: N/A
    CSVLK PID: N/A
    ID: {29907276-B48B-47D8-B873-8C20DE7325EB}(1)
    Is Admin: Yes
    TestCab: 0x0
    WGA Version: N/A, hr = 0x80070002
    Signed By: N/A, hr = 0x80070002
    Product Name: Windows Vista (TM) Home Premium
    Architecture: 0x00000000
    Build lab: 6000.vista_gdr.071009-1548
    TTS Error: M:20071216033720371-
    Validation Diagnostic:
    Resolution Status: N/A

    Notifications Data-->
    Cached Result: N/A
    File Exists: No
    Version: N/A, hr = 0x80070002
    WgaTray.exe Signed By: N/A, hr = 0x80070002
    WgaLogon.dll Signed By: N/A, hr = 0x80070002

    OGA Data-->
    Office Status: 109 N/A
    OGA Version: N/A, 0x80070002
    Signed By: N/A, hr = 0x80070002
    Office Diagnostics: FCEE394C-2989-80070002

    Browser Data-->
    Proxy settings: N/A
    User Agent: Mozilla/4.0 (compatible; MSIE 7.0; Win32)
    Default Browser: C:\Program Files\Internet Explorer\iexplore.exe
    Download signed ActiveX controls: Prompt
    Download unsigned ActiveX controls: Disabled
    Run ActiveX controls and plug-ins: Allowed
    Initialize and script ActiveX controls not marked as safe: Disabled
    Allow scripting of Internet Explorer Webbrowser control: Disabled
    Active scripting: Allowed
    Script ActiveX controls marked as safe for scripting: Allowed

    File Scan Data-->
    File Mismatch: C:\Windows\system32\slc.dll[6.0.6000.16509]

    Other data-->
    Office Details: <GenuineResults><MachineData><UGUID>{29907276-B48B-47D8-B873-8C20DE7325EB}</UGUID><Version>1.7.0066.0</Version><OS>6.0.6000.2.00010300.0.0.003</OS><Architecture>x32</Architecture><PKey>*****-*****-*****-*****-WQD8Q</PKey><PID>89578-OEM-7332157-00061</PID><PIDType>2</PIDType><SID>S-1-5-21-686458518-1523192938-3555975630</SID><SYSTEM><Manufacturer>Hewlett-Packard</Manufacturer><Model>HP Pavilion dv9000 (RD868AV#ABA)  </Model></SYSTEM><BIOS><Manufacturer>Hewlett-Packard</Manufacturer><Version>F.16     </Version><SMBIOSVersion major="2" minor="4"/><Date>20070202000000.000000+000</Date></BIOS><HWID>03313507018400EA</HWID><UserLCID>0409</UserLCID><SystemLCID>0409</SystemLCID><TimeZone>Pacific Standard Time(GMT-08:00)</TimeZone><iJoin>0</iJoin><SBID><stat>3</stat><msppid></msppid><name></name><model></model></SBID><OEM><OEMID>HPQOEM</OEMID><OEMTableID>SLIC-MPC</OEMTableID></OEM><BRT/></MachineData><Software><Office><Result>109</Result><Products/></Office></Software></GenuineResults> 

    Spsys.log Content: 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

     

    Sunday, December 16, 2007 11:54 AM

Answers

  • Hi Sailu,

     

      At this point, I suggest opening a (no cost) WGA Support Request at http://go.microsoft.com/fwlink/?linkid=52029 and explain that your Vista is in a Mod-Auth tamper casued by the Critical System file 'slc.dll' (Build# 6.0.6000.16509) being unsigned.

     

      Further explain that the WGA Forum Manager believes that the 'slc.dll' file became unsigned due to the Update KB933928 updated the 'slc.dll' file but failing before it could update the System Catalog with the file's new signature hash. Therefore, when Vista compares the 'slc.dll' file with the System Catalog's signature hash for that file, (and they don't match) Vista thinks the 'slc.dll' file was tampered and Vista goes into Mod-Auth tamper mode.

     

      To fix your issue, we need to have the 'slc.dll' match the System Catalog's signature hash for that file.  The only way I know how to do that would be to uninstall KB933928 so that the 'slc.dll' file is rolled back to it earlier version, but since Vista isn't letting you uninstall the update, I am hoping WGA Support may have other options.

     

    Thank you,

    Darin Smith

    WGA Forum Manager

    Tuesday, December 18, 2007 7:59 PM

All replies

  • Hi Saiu,

     

      Shutting down too quickly usually does not cause this type of issue, but in your case, it may have contributed to the issue. Vista is in what is called a 'Mod-Auth' Tamper state.  There are 2 types of Mod-Auth tampers.

     

    1) A critical system file was modified on disk - What this means is that the file, located on the hard drive, was modified in some way.

     

    2) A critical system file was modified in memory - What this means is the file itself (on the hard drive) is un-modified, but the code, from that file, running in the system, was modified in some way.

     

    Because of the Mismatched files listed under the "File Scan Data-->" line of your Diagnostic Report, I beleive your issue is caused by: 1) A critical system file was modified on disk

     

    Number 2 is usually caused by a running program that is incompatible with Vista.

     

    Number 1 can be caused by a malicious program (spyware, malware, virus) or by manual file modification (by a user of the system). There is also a very small chance that an Update may fail in mid-update and cause this type of issue. As a safety mechanism, Updates are made so that if they fail, they roll back any updating that was done before the failure, but there is an off chance that the roll back did not occure.

     

      I believe that your issue was caused by a failed update (KB933928) and that the failure may have been caused if you shut down before the update completed fully.

     

     

      So, what I would like to do is exclude a failed update as the cause of your issue. To do that, I would like you to uninstall/reinstall the update that correspond with mismatched critical system files seen in your Diagnostic Report under the "File Scan Data-->" line. (i.e. slc.dll[6.0.6000.16509]) by following the below steps:

     

    First, uninstall the updates:

     

    1) Log in to Vista in Safe Mode

    2) Click 'Start' then Click 'Control Panel'.

    3) Click 'Classic View' in the upper right of the Control Panel window.

    4) Double-Click the icon named 'Programs and Features'.

    5) Click the 'View installed updates' link in the upper right of the Program and Features window.

    6) It may take some time for the list of Updates to appear, please wait.

    7) Right-Click on the update 'KB933928' and select 'Unistall'.

    8) Reboot into Normal Mode

     

    Now, reinstall the updates:

    (At this point, Vista may or may not be in reduced functionality, the below steps assume that Vista is in reduced functionality)

     

    9) Log in to Vista and select the options that brings up the Internet Browser.

    10) Go to http://www.microsoft.com/downloads

    11) Search for KB933928

    12) In the search results, click the update that has "KB933928" in the name.

    13) Click the 'Download' button.

    14) You will be given the choice to Save or Run, select Run

    15) Reboot 2 times.

     

     Please post back on if this does or does not resolve your issue.

     

     

    Thank you,

    Darin Smith

    WGA Forum Manager

    Monday, December 17, 2007 11:40 PM
  • I have seen these directions before (I believe from your posts on other threads) and I had tried them at least once already, but I decided to give it one more shot... when I entered the "view installed updates" section I recieved the message (and I quote) "No updates are installed on this computer."  is there anything else that you can do to help me?

    Tuesday, December 18, 2007 5:08 AM
  • Hi Sailu,

     

      At this point, I suggest opening a (no cost) WGA Support Request at http://go.microsoft.com/fwlink/?linkid=52029 and explain that your Vista is in a Mod-Auth tamper casued by the Critical System file 'slc.dll' (Build# 6.0.6000.16509) being unsigned.

     

      Further explain that the WGA Forum Manager believes that the 'slc.dll' file became unsigned due to the Update KB933928 updated the 'slc.dll' file but failing before it could update the System Catalog with the file's new signature hash. Therefore, when Vista compares the 'slc.dll' file with the System Catalog's signature hash for that file, (and they don't match) Vista thinks the 'slc.dll' file was tampered and Vista goes into Mod-Auth tamper mode.

     

      To fix your issue, we need to have the 'slc.dll' match the System Catalog's signature hash for that file.  The only way I know how to do that would be to uninstall KB933928 so that the 'slc.dll' file is rolled back to it earlier version, but since Vista isn't letting you uninstall the update, I am hoping WGA Support may have other options.

     

    Thank you,

    Darin Smith

    WGA Forum Manager

    Tuesday, December 18, 2007 7:59 PM