Loss and damage of common system files

        There are many faults caused by file loss. Almost all people who have used computers have encountered it. File loss often means that the computer cannot be started and the software cannot run. Common file loss failures are generally caused by viruses and misuse. The following are some of the more common file loss faults that I have collected. You can see which ones you have encountered.

Q: I installed Windows 98/XP dual system. When using Windows 98, I will prompt nwlink under DOS. The vxd file is missing. Although you can enter it by pressing any key, there is nothing abnormal after entering the system, but it always feels unsmooth. How can I fix this error?

A: Actually this problem is caused by file corruption in the system bootloader. First find the Windows 98 installer, we will see a lot of CAB file packages, through which you can repair these damaged files. Click the "Start" button, select "Start → Programs → Accessories → System Tools → System Information → Tools → System File Checker" command, click the "Extract a file from the installation disk" option in the pop-up interface, enter Losing the file name will retrieve the missing file. In addition, similar problems may occur when the driver files of some hardware in the computer are lost. At this time, the drivers of each hardware should be reinstalled.

Q: I am using Windows XP. When I open the control panel, a dialog box pops up saying "Windows can't find C:\\Windows\\Rundll32.exe". How can I restore this?

Answer: Rundll32.exe is a dynamic link library provided by the system. It is used to call 32-bit DLL functions. Obviously this problem is caused by the file being damaged. We can restore it by the following method, first put the system installation disk into the CD-ROM drive, then open the "command prompt" and enter "expand f:\\i386\ undll32.ex_ c:\\Windows\\ Rundll32.exe", where "F:\\" is the CD-ROM drive letter, you can change it according to your own CD-ROM drive.

Q: Some time ago, the computer had a love backdoor virus. After killing it with a special killing tool, double-click the disk drive letter in the resource manager to say: "Windows cannot find the COMMAND.EXE file", request to locate the file. File, I can open it after I navigate to C:\\Windows\\Explorer. How can I solve this problem?

A: The virus has a volume AutoRun.inf file under each drive. As long as you double-click the drive, it will activate the virus. We need to manually delete the AutoRun.inf file at the command prompt. "Enter "attrib autorun.inf -s -h -r" to remove its "system", "read-only", "hidden" properties, so you can delete it by typing "del autorun.inf". Then go to the Registry
to find the "COMMAND.EXE" key value item, and then delete the entire shell subkey, so that the C drive can be opened, and the other disks can be deleted in the same way.

Q: The computer is installed with Windows XP. When booting, the error message "hal.dll file is missing" appears. I don't want to reinstall the system. How can I fix it?

A: This problem is caused by the damage of the Boot.ini file under the C drive, the system can not read, can only find the system file under C:\\Windows, but because Windows XP is not installed to the C drive In the middle, so the above error will occur. The solution is to re-edit the Boot.ini file. You can copy the Boot.ini file to other computers (on the same computer as the operating system of the machine), or you can write it according to the actual situation of your computer. One. There are many articles that introduce the Boot.ini file format, so we won't go into details here.