every time my friend tries to log on his computer crashes he cant do any thing?

The computer's registry is one big database that has numerous files, options, and settings. These settings and options keep changing with every second of you using your PC and can lead to the damage of some of these settings. This causes errors to show up and the computer to crash. Registry cleaners http://clean-up-registry-faster-pc.com/ software scan the computer's errors and matches all files and settings with the applications that use them. If it identifies any file or setting to be damaged, missing, or corrupted, it provides you with an updated list of the same and also repairs these errors. Therefore, if your computer keeps crashing and need to fix blue screen of death a good registry cleaner is all you need. Your computer can also cause problems because of redundant files in its registry. Reg cleaners identify all these redundant and junk files that were left over during the uninstalling process of hardware of software and delete them. This makes sure that the "computer keeps crashing" issue is taken care of.

There are many possible reasons for this kind of Crashing...

1. System Errors:

Many errors in system or corrupt data in windows registry leads to crashes. First you need to fox those with any good software toll available such as RegInOut. It will also impact computer performance in positive way.

2.Virus or Trojans:

If you find your Computer Crashes, run an updated virus scanner as you could have a virus.

3.Fragmented Disk:

As files are added, deleted, and updated on a disk, the contents of the file can become spread across different sectors located in different regions of the disk. This is called file or disk fragmentation. Disk fragmentation can slow down your machine because the disk heads have to move back and forth to find all the fragments of a file. Windows comes with it's own disk defragmentation tool and the microsoft website explains how to run it.

4.Repair system files:

When trying to solve Computer Crashes problem, the Last Known Good Configuration will only repair the registry data. But if there is something wrong with the system files, it will result in system instability or failure to log in the system. So a scan with the system command "SFC" is needed. Once a file is found to be missing or damaged, you will be prompted to insert the installing CD to restore the original file. You can go to Start -> run -> type "sfc /scan now" and then "Enter" to begin the scanning. By the way, please remember to use a patched CD to restore the system if the operating system in the installing CD is an older one, avoiding a restore to an older version.

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