Windows would start because the folowing file is missing or corrupt:
\windows\system32\config\system
The above message is on my screen, I am advised to install original set
up disc which advises me that it will delete my 'c' drive with three
years work in it.
On speaking to Vaio the computer makers, they advise I have no
alternative if I cannot access Windows. I have tried to do this on
'safe mode' but no joy.
You have three years of work on your computer but no backups? First
retrieve the data.
1. Install the drive as a slave drive in another XP or Windows 2000
computer and copy the data
2. Create a bootable Bart's PE CD, boot from it, and copy the data to a
flash drive
3. Create a bootable linux CD with a distro such as Knoppix. Boot from
that, then copy the data to flash drive or if there are two CD drives, one
of which is a burner, use the k3b program on the linux CD to burn the data
to CD.
4. Take the computer to a competent computer tech to recover the data.
The error message indicates a registry problem. The normal solution is
this:
How to Recover from a Corrupted Registry that Prevents Windows XP from
Starting:
http://support.microsoft.com/?id=307545
There is a warning in this article, however, that it should not be used with
an OEM installation of XP which is what you have.
Another resolution is to do a repair install but for that you need an XP
installation CD for the system, but all you have is a recovery CD.
So the last option is to use the recovery CD. You will loose the data on
the drive so that's why you need to retrieve the data first.
After the system is running again set up a backup regimen. I recommend
using a drive imaging program such as Acronis True Image and saving a
compressed image of the drive to an external USB drive with redundancy by
burning a copy to DVD.