SFC SCANNOW

sfc xp

To resolve this issue, use the System File Checker tool (SFC.exe) to
determine which file is causing the issue, and then replace the file.
For
moe detailed information, visit the link provided below:

http://support.microsoft.com/kb/929833

NOTE: The URL above will take you to a non HP Web site. HP does
not control and is not responsible for information outside

of the HP Web site.

sfc vista

To resolve this issue, use the System File Checker tool (SFC.exe) to determine which file is causing the issue, and then replace the file. To do this, follow these steps:

1. Click Start, click All Programs.
2. Click Accessories, right-click Command Prompt, and then click Run as administrator.
3. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
4. Type the following command, and then press ENTER:

sfc /scannow

The sfc /scannow command scans all protected system files and replaces incorrect versions with correct Microsoft versions.