hi,,
heres the problem i turn on my desktop computer and the f8 screen appears, no matter which one i click (safe mode, safe mode with networking, safe mode with command PROMPT, last known good configuration or start windows normally) i get the following error on a BLUE screen:
------------------------------------------------------------------------------
STOP: c0000218 {registry file failure}
The registry cannot load the hive
\SystemRoot\System32\Config\SAM
or its log or alternate.
It is corrupt, absent, or not writable.

Beginning dump of physical memory
Dumping physical memory to disk: __%
--------------------------------------------------------------------------------

it wont load into windows as my registry is corrupt
I do not have OS disk and no recovery disks. im currently using my laptop to access the internet but need back onto the computer soon for work reasons.
Is there anyway to keep my files already on my computer and get this problem solved, Any suggestions more than welcome!!!See if this helps:

http://support.microsoft.com/default.aspx?scid=kb;EN-US;q156640RESOLUTION
To RESOLVE this issue, follow these steps:
1. Start your computer by running the Recovery Console, run the chkdsk /p command on the drive, and then restart your computer. Test to determine whether the issue is resolved. If the issue is resolved, do not complete the remaining steps. If the issue is not resolved, go to step 2.
2. When Windows loads, PRESS SPACE BAR when the "Load Last Known Good" message appears.
3. Complete a parallel installation, and restore the registry files from a tape backup. To do so: • Reinstall Windows in a separate folder.
• Restore the damaged registry hive from backup. This procedure is specific to the backup application that you used to make a backup. Consult the documentation of your backup application or consult the vendor if you need assistance. Typically, this procedure requires you to restore a system state backup to an alternate LOCATION, and then copy the appropriate registry files to the %SYSTEMROOT%\System32\config folder of the damaged operating system.
• If you do not have a tape backup, include the backup of network servers and production workstations.
NOTE: If Windows is stored on a FAT partition, you can restore the files by using another computer and by copying the registry hive files to the %SYSTEMROOT%\System32\Config subfolder.


how do i run my recovery console and run the chkdsk /p command on the drive?http://support.microsoft.com/kb/307654