I had a problem with new tabbs not opening. the instructions on the folloing link fixed it: You cannot log in to or connect to secured Web sites in Internet Explorer Here is the method:
Method 7: Use the System File Checker (Sfc.exe) tool to scan all Windows File Protection (WFP)-protected files
Use System File Checker with the /scannow
parameter to immediately scan and verify the versions of all the system files that Windows File Protection helps protect. If System File Checker discovers that such a file was overwritten, it retrieves the correct version of the file from the cache folder (Systemroot\System32\Dllcache) or from the Windows installation source files, and then replaces the incorrect file. System File Checker also checks and repopulates the cache folder. You must be logged on as an administrator or as a member of the Administrators group to run System File Checker.
To run System File Checker with the /scannow
parameter, follow these steps:
- Click Start, and then click Run.
- In the Open box, type cmd, and then click OK.
- At the command prompt, type sfc /scannow, and then press ENTER.
For more information about System File Checker in Windows XP, click the following article number to view the article in the Microsoft Knowledge Base: 310747
(Description of Windows XP and Windows Server 2003 System File Checker (Sfc.exe)
) Description of Windows XP and Windows Server 2003 System File Checker (Sfc.exe)
For more information about System File Checker in Windows Vista, click the following article number to view the article in the Microsoft Knowledge Base: 929833
(How to use the System File Checker tool to troubleshoot missing or corrupted system files on Windows Vista or on Windows 7
) Some Windows Vista functions may not work, or Windows Vista may stop responding