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Windows has discovered a change that will result in limited windows functionality

Question
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Can you help me please.
On windows start I receive a Windows error indicating "Windows has discovered a change that will result in limited windows functionality"
I have tried restore prior to latest MS Windows Vista updates, but same error occurs when these updates are downloaded again.
PC is is approx 3 months old: HP dx2300M, preinstalled with Windows Vista Business (OEM licence).
Diagnostic report attached.
Robin Jarvis
Diagnostic Report (1.7.0095.0):
-----------------------------------------
WGA Data-->
Validation Status: Invalid License
Validation Code: 50
Online Validation Code: 0x80070426
Cached Validation Code: N/A, hr = 0x80070426
Windows Product Key: *****-*****-8C6BG-C9BT2-3XDRY
Windows Product Key Hash: oWta8ppfnmM4oKWopS821q1BPNs=
Windows Product ID: 89576-OEM-7332141-00039
Windows Product ID Type: 2
Windows License Type: OEM SLP
Windows OS version: 6.0.6000.2.00010100.0.0.006
CSVLK Server: N/A
CSVLK PID: N/A
ID: {6EAE8FF4-06E7-4C3B-9083-1CE2F8457DE2}(1)
Is Admin: Yes
TestCab: 0x0
WGA Version: Registered, 1.7.69.2
Signed By: Microsoft
Product Name: Windows Vista (TM) Business
Architecture: 0x00000000
Build lab: 6000.vista_gdr.071023-1545
TTS Error: M:20080718142225155-
Validation Diagnostic:
Resolution Status: N/AWgaER Data-->
ThreatID(s): N/A, hr = 0x80070002
Version: 6.0.6002.16398WGA Notifications Data-->
Cached Result: N/A, hr = 0x80070002
File Exists: No
Version: N/A, hr = 0x80070002
WgaTray.exe Signed By: N/A, hr = 0x80070002
WgaLogon.dll Signed By: N/A, hr = 0x80070002OGA Notifications Data-->
Cached Result: N/A, hr = 0x80070002
Version: N/A, hr = 0x80070002
WGATray.exe Signed By: N/A, hr = 0x80070002
OGAAddin.dll Signed By: N/A, hr = 0x80070002OGA Data-->
Office Status: 102
Microsoft Office Standard 2007 - 100 Genuine
2007 Microsoft Office system - 100 Genuine
OGA Version: N/A, 0x80070002
Signed By: N/A, hr = 0x80070002
Office Diagnostics: 77F760FE-153-80070002_7E90FEE8-175-80070002_025D1FF3-282-80041010_025D1FF3-170-80041010_025D1FF3-171-1_025D1FF3-434-80040154_025D1FF3-178-80040154_025D1FF3-179-2_025D1FF3-185-80070002_025D1FF3-199-3Browser 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: AllowedFile Scan Data-->
File Mismatch: C:\Windows\system32\slc.dll[6.0.6000.16509]Other data-->
Office Details: <GenuineResults><MachineData><UGUID>{6EAE8FF4-06E7-4C3B-9083-1CE2F8457DE2}</UGUID><Version>1.7.0095.0</Version><OS>6.0.6000.2.00010100.0.0.006</OS><Architecture>x32</Architecture><PKey>*****-*****-*****-*****-3XDRY</PKey><PID>89576-OEM-7332141-00039</PID><PIDType>2</PIDType><SID>S-1-5-21-101807067-2114804773-3931303574</SID><SYSTEM><Manufacturer>Hewlett-Packard</Manufacturer><Model>HP Compaq dx2300 Microtower</Model></SYSTEM><BIOS><Manufacturer>Phoenix Technologies, LTD</Manufacturer><Version>MS7336 1.08</Version><SMBIOSVersion major="2" minor="4"/><Date>20070525000000.000000+000</Date></BIOS><HWID>96313507018400FA</HWID><UserLCID>0809</UserLCID><SystemLCID>0409</SystemLCID><TimeZone>GMT Standard Time(GMT+00:00)</TimeZone><iJoin>0</iJoin><SBID><stat>3</stat><msppid></msppid><name></name><model></model></SBID><OEM><OEMID>HPQOEM</OEMID><OEMTableID>SLIC-BPC</OEMTableID></OEM><BRT/></MachineData><Software><Office><Result>102</Result><Products><Product GUID="{91120000-0012-0000-0000-0000000FF1CE}"><LegitResult>100</LegitResult><Name>Microsoft Office Standard 2007</Name><Ver>12</Ver><Val>5AC1EA1DCD5525E</Val><Hash>yEk5CtUSe2OW0hBpLxp+ifM9Rdw=</Hash><Pid>81607-303-9708387-64003</Pid><PidType>10</PidType></Product><Product GUID="{91120000-0031-0000-0000-0000000FF1CE}"><LegitResult>100</LegitResult><Name>2007 Microsoft Office system</Name><Ver>12</Ver><Val>B1059D440362014</Val><Hash>rydGR6FbtfLB0mcDVTgMvxAsS8E=</Hash><Pid>89451-OEM-6601035-61330</Pid><PidType>11</PidType></Product></Products><Applications><App Id="15" Version="12" Result="100"/><App Id="16" Version="12" Result="100"/><App Id="18" Version="12" Result="100"/><App Id="19" Version="12" Result="100"/><App Id="1A" Version="12" Result="100"/><App Id="1B" Version="12" Result="100"/></Applications></Office></Software></GenuineResults>Spsys.log Content: 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
Friday, July 18, 2008 2:25 PM
Answers
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Hi Robin
The core to your particular issue centers on the line in your Diagnostic Report, that reads:
File Scan Data-->
File Mismatch: C:\Windows\system32\slc.dll[6.0.6000.16509]
This line means that the critical system file slc.dll has either
a) Been tampered/modified/become corrupt to the point that its Signature Hash no longer matches the Signature Hash listed in Vista's System Catalog.
Or
b) Been updated but the file's Signature Hash was not updated, in Vista's System Catalog to reflect the updated file's new Signature Hash.
Vista compares a Critical System file's Signature Hash with the Signature Hash listed in its System Catalog to determine if that Critical System file has been tampered with. When this happens, depending on the file that has been tampered, Vista may show as Genuine or Non-Genuine, but either way, Vista won't Validate correctly and may also exhibit other strange behavior.
To resolve your issue, we need to replace or repair the file so it's Signature Hash matches what is listed in Vista System Catalog. I can provide a couple of suggestions to do this:
A) Install Service Pack 1 for Vista (found at http://www.microsoft.com/downloads/details.aspx?FamilyID=b0c7136d-5ebb-413b-89c9-cb3d06d12674&DisplayLang=en). File slc.dll may be included in the SP1 install and if so, SP1 will overwrite the bad file with a Known-Good copy.
(Note: this is the simpler way to resolve, but be aware that I have not received confirmation that slc.dll.dll is, in fact, included in SP1. So if this option does not resolve the issue, please see option B).
B) Repair Windows using System Restore:
1) Reboot Vista into Safe Mode
2) Go to Control Panel
3) On the left hand side of the Control Panel window, Click on "Classic View"
4) Double-click "Backup and Restore Center"
5) On the left hand side of the window, click "Repair Windows using system restore"
6) Select "Choose Different Restore Point", Put a check in the box that says "Show restore points older than 5 days", select the restore point that corresponds to the date Before you first noticed the issue.
7) Click the "Next" button.
8) Reboot back into Normal mode
9) Vista should no longer be in Reduced Functionality mode
Your issue may be related to the errors you saw during Windows Update. I suggest that you look at was updates (would be in the form of KBxxxxx) were installing when the install errors occured and instead of letting Windows Update install them, install them manually by going to http://download.microsoft.com and searching for the KB number)
If none of these solutions resolves your issue, the last resort, that I can provide, is to reinstall Vista. But before you do that, create a (no cost) support request at http://go.microsoft.com/fwlink/?linkid=52029 and see if they can provide any alternatives.
Thank you,
Darin Smith
WGA Forum Manager
Monday, July 21, 2008 10:41 PM -
Hi Robin
If none of those solutions resolves your issue, the last resort, that I can provide, is to reinstall Vista (in your case, by using the HP Backup & Recovery Disk). But before you do that, create a (no cost) support request at http://go.microsoft.com/fwlink/?linkid=52029 and see if they can provide any alternatives or fixes that I may not be aware of.
Sorry I couldn't be more help,
Darin
Tuesday, July 22, 2008 8:36 PM
All replies
-
Hi Robin
The core to your particular issue centers on the line in your Diagnostic Report, that reads:
File Scan Data-->
File Mismatch: C:\Windows\system32\slc.dll[6.0.6000.16509]
This line means that the critical system file slc.dll has either
a) Been tampered/modified/become corrupt to the point that its Signature Hash no longer matches the Signature Hash listed in Vista's System Catalog.
Or
b) Been updated but the file's Signature Hash was not updated, in Vista's System Catalog to reflect the updated file's new Signature Hash.
Vista compares a Critical System file's Signature Hash with the Signature Hash listed in its System Catalog to determine if that Critical System file has been tampered with. When this happens, depending on the file that has been tampered, Vista may show as Genuine or Non-Genuine, but either way, Vista won't Validate correctly and may also exhibit other strange behavior.
To resolve your issue, we need to replace or repair the file so it's Signature Hash matches what is listed in Vista System Catalog. I can provide a couple of suggestions to do this:
A) Install Service Pack 1 for Vista (found at http://www.microsoft.com/downloads/details.aspx?FamilyID=b0c7136d-5ebb-413b-89c9-cb3d06d12674&DisplayLang=en). File slc.dll may be included in the SP1 install and if so, SP1 will overwrite the bad file with a Known-Good copy.
(Note: this is the simpler way to resolve, but be aware that I have not received confirmation that slc.dll.dll is, in fact, included in SP1. So if this option does not resolve the issue, please see option B).
B) Repair Windows using System Restore:
1) Reboot Vista into Safe Mode
2) Go to Control Panel
3) On the left hand side of the Control Panel window, Click on "Classic View"
4) Double-click "Backup and Restore Center"
5) On the left hand side of the window, click "Repair Windows using system restore"
6) Select "Choose Different Restore Point", Put a check in the box that says "Show restore points older than 5 days", select the restore point that corresponds to the date Before you first noticed the issue.
7) Click the "Next" button.
8) Reboot back into Normal mode
9) Vista should no longer be in Reduced Functionality mode
Your issue may be related to the errors you saw during Windows Update. I suggest that you look at was updates (would be in the form of KBxxxxx) were installing when the install errors occured and instead of letting Windows Update install them, install them manually by going to http://download.microsoft.com and searching for the KB number)
If none of these solutions resolves your issue, the last resort, that I can provide, is to reinstall Vista. But before you do that, create a (no cost) support request at http://go.microsoft.com/fwlink/?linkid=52029 and see if they can provide any alternatives.
Thank you,
Darin Smith
WGA Forum Manager
Monday, July 21, 2008 10:41 PM -
Could not complete step1:
- Downloaded Vista 32 SP1
- Set up to 'clean boot' (as per 629135)
- Re-Started windows in safe mode.
- Set screen saver to 120 mins
- Ran installation of SP1
Started for 15 minutes then gave following error message:
Retried with same result
Internal error Occurred while installing the Service Pack
Error Code: 0x800B0100
go to http://go.microsoft.com/fwlink/?linkid=101139
Tried this but can not complete step 1 of resolution 1 as do not have access to 'Start' in Genuine MS detection mode NOR will Windows Update start in Safe Mode.
Have also attempted to restore from previous backup - but now no restore points are being displayed. They were there earlier today.???
The last fall back point is I have an HP Backup & Recovery Disk available that I created in APR-08
Next steps please!
Tuesday, July 22, 2008 2:57 PM -
Hi Robin
If none of those solutions resolves your issue, the last resort, that I can provide, is to reinstall Vista (in your case, by using the HP Backup & Recovery Disk). But before you do that, create a (no cost) support request at http://go.microsoft.com/fwlink/?linkid=52029 and see if they can provide any alternatives or fixes that I may not be aware of.
Sorry I couldn't be more help,
Darin
Tuesday, July 22, 2008 8:36 PM