Either Bad Driver or Bad Memory. If you have more than one stick of memory try with just one at a time

0x0000007e is one of the following:

MS troubleshooter for 0x0000007E

Lack of hard drive space Make sure you have at least 20% space left on your windows partition

DO NOT UPDATE BIOS very unlikely to be a BIOS fault

Driver conflict Boot to safemode and update drivers.

To be honest first thing I would try is a startup repair

You need to look at Windows Vista's Repair Your Computer options.

. Startup repair - This automatically fixes problems that are preventing Windows from starting

. System Restore - This will Restore Windows to an earlier point in time

. Windows Complete PC Restore - This will completely restore your entire PC - programs, system settings and files - from a back up that you have previously created (Available in Windows Vista Business, Enterprise and Ultimate editions only)

. Windows Memory Diagnostic Tool - This checks your computer's memory hardware for errors

. Command Prompt - This opens a Command Window

With the Complete PC Restore Option you must have made a backup of your system, either on your hard drive or on a set of DVDs, in order to use this option. If you don't have a backup then don't use this option

How you access the repair options will depend upon whether you have a Windows Vista installation disk or whether your operating system came pre-installed by your PC manufacturer.

Pre-Installed Options NOTE

If no repair options are available your PC manufacturer may have replaced the tools or customised them. Check your Computer Manual before proceeding.

1/ Start your PC

2/ If your PC has one operating system Press and Hold the F8 key as your PC starts. If the Windows Logo appear you will need to start again

3/ If you have a dual boot system a Boot option menu will appear. Highlight the Vista operating system and Press the F8 key

4/ In both cases, if all has gone well, an Advanced options screen will now appear

5/ Highlight the repair Your Computer option and Press Enter

6/ Select a keyboard layout, and then Click the Next button

7/ Next select your user Name and Enter your Password, then Click OK

8/ The recovery options should now appear

Windows Installation Disk NOTE

1/ make sure your PC can boot directly from the Vista DVD. Obviously, most modern PCs can. With older machines you may need to check the PC's BIOS

2/ Start the PC

3/ Immediately insert the Windows Vista DVD into the DVD drive

4/ A Black screen will appear with the words 'Press any key to boot from CD or DVD'

5/ Press Any key to start the booting process

6/ A new screen will now appear with a progress bar. The legend say's 'Windows is loading files'

7/ After a few minutes the Microsoft copyright window ill appear and another small progress bar will be visible

8/ You will next see a Blue curtained screen

9/ After a short while the Language option screen will appear

10/ Select your language and keyboard language and the Click the Next button

11/ At the bottom left of the next screen - the Install screen, Click on the Repair Your Computer option

12/ The System recovery options will now search for your Windows Vista installation

13/ Once the Vista installation has been located, Highlight it and then Click the Next button

14/ You are now presented with the set of recovery options

15/ Click on the Option you require and follow the onscreen prompts

Strawballs

Where is the link