System files are missing by pressing the R key to repair the experts to take a look

Apparently the system files are missing one. Hard disk leads to loss of files II. Memory causes file lossCheck the hard disk for bad sectors, plug in the memory, or change the memory to detect it (yes to detect, not to replace the memory.

Find a boot disk into the PE system Back up the useful information out of the system disk Reinstall the system to solve the problem. Don't think about it if it's fixed. Quite just troublesome.

If it's true that these two cases are not detected, then they will appear in the future, so it's a good idea to check them out.

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After you repair, you have to press F1 to repair the system file when you boot it, that is to see if the repair file you repaired has settings that cause the BIOS to be modified.

Two methods 1, when the boot chain knows to wait for the removal of the downward arrow (on the keyboard), if you have done a one-click backup before, at this time there will be at least two choices: the first is to enter the system normally, the second is to enter the one-click ghost restore, select the second confirmation, according to your ghost version, there will be different screens, there are directly into the restoration, there are also for you to choose, and into the menu form, this is not easy to say, you better take a look, If you don't understand, you can ask again.

2. If you press the down arrow when you turn on the computer, and no selection appears, it means that you have not made a system backup, press and hold F8 after restarting, and select respectively: "Enter the security mode with network connection" and "Last boot configuration", if one of them can start the system, you can repair the system after entering the network, antivirus, etc.

If it doesn't work, go buy a system disk, ten yuan shed to spend money on one, not expensive.

Hardware:

1. If the memory is loose or the memory is problematic, if there are multiple memory, unplug the rest of the memory, and only one memory is left for testing.

2. The hard disk is caused by bad sectors, and it should be repaired with HDDREG.

Software: 1. When the system is not shut down normally or caused by misoperation, and you need to reboot, press the F8 key to come out of the system menu, and select "Last correct configuration" to try it.

2. If the above methods don't work, you can only back up the C disk first, and then redo the system, because the current system will definitely not be able to find the original installation disk, and it cannot be repaired.

3. And you enter the PE and find that there is no drive letter, because you may be using the PE of the win2003 or winxp system, and now some of the disk controllers on the new computer motherboard do not recognize the old system, and can only be recognized under the PE of the win7 or win8 system.

There are many reasons why the system file is lost after the computer boots up and needs to be repaired by the "R" key, and there are 3 points in my personal summary:

Caused by viruses. The solution is to use a USB flash drive to enter PE and then disinfect the whole disk.

There is a problem with the memory. The workaround is to replace the memory test with a new one.

Bad sectors may occur on the hard drive. The solution is to use HDDREG in the DOS environment to check whether the hard disk has bad sectors, and you can try to repair it. It can be repaired and then tested in the system. It cannot be repaired, only the system can be reinstalled.

If you are sure that the above three points are okay, you can use the XP installation disc to repair the job, and the steps are as follows:

1.Start your computer using a Windows XP installation disc or a Windows XP startup disk.

2.When the Welcome to Installer message appears, press the R key to perform Repair.

3.Press the C key to run the Failback Console tool.

4.Select the installation you want to repair.

5.Type the administrator password.

Then enter the following command.

c:\windwos\cd system32\config

C: Windows System32 Configen System Enter, C: Windows System32 Configen Enter, C: Windows System32 Config CD Enter.

C: CD Windows Enter.

C: Windows CD Repair Enter.

C: WindowsEpair Copy C: WindowsEpair System C: Windows System32 Config Enter.

6.At the command prompt, type exit, and then press enter to restart your computer.

Then fix it, and if it doesn't work, be prepared to reinstall the system.

There are other ways to do it, but it's too troublesome.

Let's change the system disk It should be that there is something wrong with your system disk.

Start with PE and re-ghost the new system.

Why is it so troublesome, you can't just reinstall the system.

It's a hint r system repair! Enter PE to have a system repair and then press r to solve it.

There is no way to fix it, only to reinstall the system!