You are the administrator of Company’s network.You install 50 new Windows 2000 Professional computers in the marketing department. Two weeks later,users report that five of the computers have stopped responding. You troubleshoot the five computers.You find that some users have installed unsigned device drivers that are not supported by Windows 2000Professional.You want to determine which drivers were installed by users.What should you do?（）
ARun the chkdsk /f command on all drives on the computers.
BConfigure Windows 2000 Professional to enable driver signing verification.
CRun the File Signature Verification tool on the computers.
DRun the System File Checker utility on the computers.
参考答案
参考解析：
When installing new software on your computer， system files and device driver files are sometimes overwritten by unsigned or incompatible versions， causing system instability. The system files and device driver files provided with Windows 2000 have a Microsoft digital signature， which indicates that the files are original， unaltered system files or that they have been approved by Microsoft for use with Windows. Using File Signature Verification， you can identify unsigned files on your computer. To check the digital signatures for system or non-system files Open File Signature Verification Click Advanced. On the Search tab， click one of the following： Notify me if any system files are not signed Checks only the Windows system files and all device driver files to see if they have a digital signature. Look for other files that are not digitally signed Enables you to specify the file type and location of non-system files to check for a digital signature. Click OK， and then click Start.
