You cannot install some updates or programs

You cannot install some updates or programs –

SYMPTOMS

When you try to download an ActiveX control, install an update to Windows or to a Windows component, install a service pack for Windows or for a Windows component, or install a Microsoft or third-party software program, you may experience one or more of the following symptoms:

•	You may receive the following error message when you try to install a program or update: Digital Signature Not Found The Microsoft digital signature affirms that software has been tested with Windows and that the software has not been altered since it was tested. The software you are about to install does not contain a Microsoft digital signature. Therefore, there is no guarantee that this software works correctly with Windows. Name of software package If you want to search for Microsoft digitally signed software, visit the Windows Update Web site at http://windowsupdate.microsoft.com to see if one is available. Do you want to continue the installation? If you click More Info, you receive the following message: Microsoft Windows The signature on the software package you want to install is invalid. The software package is not signed properly. After you click OK in the first error message dialog box, you may receive a message that states that the installation was successful, or you may receive the following error message: Name of Update Package The cryptographic operation failed due to a local security option setting.
•	When you try to install an update or to install a service pack, you may receive an error message that is similar to one of the following: • Name of Update Package Setup could not verify the integrity of the file Update.inf. Make sure the Cryptographic service is running on this computer. • Failed to install catalog files. • The software you are installing has not passed Windows Logo testing to verify its compatibility with Windows XP. (Tell me why this testing is important.) This software will not be installed. Contact your system administrator. • The software you are installing has not passed Windows Logo testing to verify its compatibility with this version of Windows. (Tell me why this testing is important.)
•	When you try to install a Windows XP service pack, you may receive an error message that is similar to the following: Service Pack 1 Setup could not verify the integrity of the file. Make sure the Cryptographic service is running on this computer
•	When you attempt to install Microsoft Data Access Components (MDAC) 2.8 you may receive an error message that is similar to the following: INF Install failure. Reason: The timestamp signature and/or certificate could not be verified or is malformed.
•	The %WINDIR%\System32\CatRoot2\Edb.log may grow to 20 megabytes (MB) even though the file is typically less than 1 MB.
•	When you try to install a package from the Windows Update Web site or from the Microsoft Update Web site, you may receive a message that is similar to the following: The software has not passed Windows logo testing and will not be installed.

CAUSE

This problem may occur if one or more of the following conditions are true:

•	Log file or database corruption exists in the %Systemroot%\System32\Catroot2 folder.
•	Cryptographic Services is set to disabled.
•	Other Windows files are corrupted or missing.
•	The timestamp signature or certificate could not be verified or is malformed.
•	The hidden attribute is set for the %Windir% folder or one of its subfolders.
•	The Unsigned non-driver installation behavior Group Policy setting (Windows 2000 only) is set to Do not allow installation or Warn but allow installation, or the Policy binary value is not set to 0 in the following registry key: HKEY_LOCAL_MACHINE\Software\Microsoft\Non-Driver Signing
•	The Enable trusted publisher lockdown Group Policy setting is turned on, and you do not have the appropriate certificate in your Trusted Publishers certificate store. This Group Policy setting is located under User Configuration, under Windows Settings, under Internet Explorer Maintenance, under Security, under Authenticode Settings in the Group Policy MMC snap-in.
•	You are installing Internet Explorer 6 SP1, and the 823559 (MS03-023) security update is installed.
•	The software distribution folder is corrupted.

RESOLUTION

To resolve this problem, use the following methods. After you perform the steps in each method, test to see whether the problem is resolved before you go on to the next method. If the problem is resolved by any method, you do not have to use the remaining methods.

Method 1: Rename the Edb.log file

Rename the Edb.log file, and then try to install the program again. To rename the Edb.log file, follow these steps:

1.	Click Start, click Run, type cmd in the Open box, and then OK.
2.	At the command prompt, type the following command, and then press ENTER: ren %systemroot%\system32\catroot2\Edb.log *.tst

Method 2: Set Cryptographic Services to automatic

Set the Cryptographic Services to Automatic, and then try to install the program again. To set the Cryptographic Services to Automatic, follow these steps:

1.	Start the Administrative Tools utility in Control Panel.
2.	Double-click Services.
3.	Right-click Cryptographic Services, and then click Properties.
4.	Click Automatic for Startup type, and then click Start.

Note Windows 2000 does not list Cryptographic Services in the SERVICES Administrative Utility.

Method 3: Rename the Catroot2 folder

Rename the Catroot2 folder (Windows XP and Windows Server 2003 only), and then try to install the program again.

Note Skip this method if the operating system is Windows 2000/Windows VISTA.

To rename the Catroot2 folder, follow these steps:

1.	Click Start, click Run, type cmd, and then click OK.
2.	At the command prompt, type the following commands, and then press ENTER after each line: net stop cryptsvc ren %systemroot%\System32\Catroot2 oldcatroot2 net start cryptsvc exit
3.	Remove all tmp*.cat files from the following folder: %systemroot%\system32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE} If no files that start with tmp exist in this folder, do not remove any other files. The .cat files in this folder are necessary for installing hotfixes and service packs.

Important - Do not rename the Catroot folder. The Catroot2 folder is automatically recreated by Windows, but the Catroot folder is not recreated if the Catroot folder is renamed.

Method 4: Reregister DLL files that are associated with Cryptographic Services

To register .dll files that are associated with Cryptographic Services, follow these steps:

1.	Click Start, click Run, type cmd in the Open box, and then OK.
2.	At the command prompt, type the following commands, and press ENTER after each command: regsvr32 /u softpub.dll regsvr32 /u wintrust.dll regsvr32 /u initpki.dll regsvr32 /u dssenh.dll regsvr32 /u rsaenh.dll regsvr32 /u gpkcsp.dll regsvr32 /u sccbase.dll regsvr32 /u slbcsp.dll regsvr32 /u mssip32.dll regsvr32 /u cryptdlg.dll exit Note Click OK if you are prompted. Note Microsoft Windows 2000 does not include the Sccbase.dll file. If you are running a version of Windows 2000, omit the Sccbase.dll file.
3.	Restart your computer.
4.	Click Start, click Run, type cmd in the Open box, and then click OK.
5.	At the command prompt, type the following commands, and press ENTER after each command: regsvr32 softpub.dll regsvr32 wintrust.dll regsvr32 initpki.dll regsvr32 dssenh.dll regsvr32 rsaenh.dll regsvr32 gpkcsp.dll regsvr32 sccbase.dll regsvr32 slbcsp.dll regsvr32 mssip32.dll regsvr32 cryptdlg.dll exit Note Click OK if you are prompted. Note Microsoft Windows 2000 does not include the Sccbase.dll file. If you are running a version of Windows 2000, omit the Sccbase.dll file.
6.	Restart the computer.

Method 5: Remove the hidden attribute from %Windir% and from its subfolders

1.	Click Start, click Run, type cmd in the Open box, and then OK.
2.	At the command prompt, type the following commands, pressing ENTER after each line: attrib -s -h %windir% attrib -s -h %windir%\system32 attrib -s -h %windir%\system32\catroot2 exit

Method 6: Set non-driver signing policy to silently succeed

If you are running a version of Windows 2000, set the Unsigned non-driver installation behavior Group Policy setting to Silently succeed. This Group Policy setting is located under Computer Configuration, under Windows Settings, under Security Settings, under Local Policies, under Security Options in the Group Policy MMC snap-in. If you are running Windows XP or a later version of Windows, this Group Policy setting is no longer supported. In this case, follow these steps to resolve this problem:

1.	Click Start, click Run, type regedit, and then click OK.
2.	Locate, and then click the following key in the registry: HKEY_LOCAL_MACHINE\Software\Microsoft\Non-Driver Signing
3.	Right-click the Policy binary value, and then click Modify.
4.	The Value data will appear in the following format: 0000 02 Press DELETE to remove the current value (02 in this example), and then type 0 (the current value will now appear as 00).
5.	Click OK, and then quit Registry Editor.

Method 7: Temporarily turn off Trusted Publishers Lockdown and install the appropriate certificates to your trusted publishers certificate store

You can continue to use the Enable trusted publisher lockdown Group Policy setting, but you must first add the appropriate certificates to your Trusted Publishers certificate store. To do this, turn off the Enable trusted publisher lockdown Group Policy setting, install the appropriate certificates in your Trusted Publishers certificate store, and then turn the Enable trusted publisher lockdown Group Policy setting back on. To install the appropriate certificate for Microsoft Windows and Microsoft Internet Explorer product updates, follow these steps:

1.	Download the Microsoft product update that you want to install from the Microsoft Download Center, from the Windows Update Catalog, or from the Microsoft Update Catalog
2.	Extract the product update package to a temporary folder. The command-line command that you use to do this depends on the update that you are trying to install. View the Microsoft Knowledge Base article that is associated with the update to determine the appropriate command-line switches that you will use to extract the package. For example, to extract the 824146 security update for Windows XP to the C:\824146 folder, run Windowsxp-kb824146-x86-enu -x:c:\824146. To extract the 828750 security update for Windows XP to the C:\828750 folder, run q828750.exe /c /t:c:\828750.
3.	Right-click the KBNumber.cat file from the product update package in the temporary folder you created in step 2, and then click Properties. Note The KBNumber.cat file may be in a subfolder. For example, the file may be in the C:\824146\sp1\update folder or in the C:\824146\sp2\update folder.
4.	On the Digital Signatures tab, click the digital signature and then click Details.
5.	Click View Certificate, and then click Install Certificate.
6.	Click Next to start the Certificate Import Wizard.
7.	Click Place all certificates in the following store, and then click Browse.
8.	Click Trusted Publishers, and then click OK.
9.	Click Next, click Finish, and then click OK.

Method 8: Verify the status of all certificates in the certification path and import missing or damaged certificates from another computer

To verify certificates in the certificate path for a Windows or Internet Explorer product update, follow these steps:

Step 1: Verify Microsoft certificates

1.	In Internet Explorer, click Tools, and then click Internet Options.
2.	On the Content tab, click Certificates.
3.	On the Trusted Root Certification Authorities tab, double-click Microsoft Root Authority. If this certificate is missing, go on to step 2.
4.	On the General tab, make sure that the Valid from dates are 1/10/1997 to 12/31/2020.
5.	On the Certification Path tab, verify that This certificate is OK appears under Certificate Status.
6.	Click OK, and then double-click the NO LIABILITY ACCEPTED certificate.
7.	On the General tab, make sure that the Valid from dates are 5/11/1997 to 1/7/2004.
8.	On the Certification Path tab, verify that either This certificate has expired or is not yet valid or This certificate is OK appears under Certificate Status. Note Although this certificate is expired, the certificate will continue to work. The operating system may not work correctly if the certificate is missing or revoked.
9.	Click OK, and then double-click the GTE CyberTrust Root certificate. You may have more than one of these certificates with the same name. Check the certificate that has an expiration date of 2/23/2006.
10.	On the General tab, make sure that the Valid from dates are "2/23/1996 to 2/23/2006."
11.	On the Certification Path tab, verify that This certificate is OK appears under Certificate Status. Note Although this certificate is expired, the certificate will continue to work. The operating system may not work correctly if the certificate is missing or revoked.
12.	Click OK, and then double-click Thawte Timestamping CA.
13.	On the General tab, make sure that the Valid from dates are "12/31/1996 to 12/31/2020."
14.	On the Certification Path tab, verify that This certificate is OK appears under Certificate Status.

Step 2: Import missing or damaged certificates

If one or more of these certificates are missing or corrupted, export the missing or corrupted certificates to another computer, and then install the certificates on your computer. To export certificates on another computer, follow these steps:

1.	In Internet Explorer, click Tools, and then click Internet Options.
2.	On the Content tab, click Certificates.
3.	On the Trusted Root Certification Authorities tab, click the certificate that you want to export.
4.	Click Export, and then follow the instructions to export the certificate as a DER encoded Binary x.509(.CER) file.
5.	After the certificate file has been exported, copy it to the computer where you want to import it.
6.	On the computer where you want to import the certificate, double-click the certificate.
7.	Click Install certificate, and then click Next.
8.	Click Finish, and then click OK.

Method 9: Clear the temporary file and restart the hotfix installation or the service pack installation

Note Skip this method if the operating system is Windows 2000.

To clear the temporary file and restart the hotfix installation or the service pack installation, follow these steps:

1.	Delete all the tmp*.cat files in the following folders: %systemroot%\system32\CatRoot\{127D0A1D-4EF2-11D1-8608-00C04FC295EE} %systemroot%\system32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}
2.	Delete all the kb*.cat files in the following folders: %systemroot%\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE} %systemroot%\System32\CatRoot\{127D0A1D-4EF2-11D1-8608-00C04FC295EE}
3.	Delete all the oem*.* files from the %systemroot%\inf folder.
4.	At the command prompt, type the following commands. Press ENTER after each command. net stop cryptsvc ren %systemroot%\System32\Catroot2 oldcatroot2 net start cryptsvc exit
5.	Restart the failed hotfix installation or service pack installation.

Method 10: Empty the software distribution folder

1.	Click Start, click Run, type services.msc, and then click OK.
2.	In the Services (Local) pane, right-click Automatic Updates, and then click Stop.
3.	Minimize the Services (local) window.
4.	Select all the contents of the Windows distribution folder, and then delete them. Note By default, the Windows distribution folder is located in the drive:\Windows\SoftwareDistribution folder. In this location, drive is a placeholder for the drive where Windows is installed.
5.	Make sure that the Windows distribution folder is empty, and then maximize the Services (local) window.
6.	In the Services (Local) pane, right-click Automatic Updates, and then click Start.
7.	Restart the computer, and then run Windows Update again.

If after doing the above steps still you are not able to Install some Updates or Programs, then do a Complete Format Re-Installation of Operating System.