Heeeeeelp - Noobs PC won't boot.....

18 public posts in this discussion.

Post 1

Hi guys...

Just wondering if anybody had any suggestions on the below:-

My PC at home has stopped booting up Win XP.

It shows the bios info on screen, checks floppy and then CD for boot as normal, but then I get screen saying:-

"We apologise for any inconvenience but Windows has not started properly. This may be because of a recent hardware or software change"

It then gives options to 'start as normal', 'in safe mode, 'in safe mode with networking or command prompt', or 'with last known good configuration'.

None of which do anything.

'Start as normal' freezes.

'Safe mode' executes a list of windows/system32/ commands, then stops.

'Last good config' just re-starts and does the above all over again.

Does anyone have any ideas on the problem and fix? HDD failure?

Coincidentally I have a brand new HDD I intended to install as a second one, but havent as yet. Is the best (only?) thing to do to install windows on that, then see what is salvageable off the old drive?

Thanks in advance for any help....

Post 2

Try installing windows on your new HDD and try to salvage stuff off your old hard drive.

Post 3

Check your bios, I had PSU issues cause failures to boot, and my voltages were low.

New PSU and all was happy.

Post 4

Press F8 when its starting and then from the list select "Disable Automatic Restart On System Failure".

Note down the error on the blue screen that comes up then get back to us.

Probably a repair install will get you up and running but youll want to do a Memtest and HDDReg test to try and work out why it happened in the first place.

Post 5

do you have a windows cd? if so just repair the windows operating system..

1.boot of cd:

2.let it go through all its loading stages

3.hit install xp and accept license

4. hit r for repairing the windows operating system

this fixes most problems if you don't wanna do any research and just do a quick fix, you will have to reinstall any service packs and i would recommend either re-installing your hardware drivers or just update to the newest version.....

EDIT: wrathlon beat me to the bullet ......

Post 6

Thanks all for the help so far.

Quote from UnSCaRReD;326615:
Check your bios, I had PSU issues cause failures to boot, and my voltages were low.

New PSU and all was happy.

This is an interesting one, as I did replace the power supply a couple of weeks ago due to a dodgy fan.

Lack of volts isnt a problem, as I went from 300 to 430, but maybe something not plugged in correctly.....

I'll re-check this, and if still necessary try booting from the Win CD as suggested.

Thanks again!

Post 7

Quote from K_Space;326624:

Lack of volts isnt a problem, as I went from 300 to 430, but maybe something not plugged in correctly.....

Watts != Volts

Wattage is how many devices it can power, voltage is how much power it is delivering to the devices.

Hard drives use a 12V rail, Cpu's use 5.5V and 3.3V.

Inconsistent voltage will cause errors, often leading to data corruption, and memory errors.

Post 8

Ah ffs, doh me.

I meant Watts.....

LOL

Post 9

if you did replace your PSU, and these problems started, decent chance the new PSU is to blame.

Try and track down a PSU tester, failing that, if you can get into the bios, there should be a screen to show you the voltage levels on your PSU.

Turn on the PC, open up that screen, and leave it open for a 1/2 hour, make after the PSU is warmed up, that the voltage levels are still steady.

if they are fluctuating, well, then you have discovered your issue, and go RA that sucker :P

Post 10

You said that when booting into safe mode, it runs a list of commands on the screen then freezes. Does it always get to the same command when it freezes? If it does, its a possible corruption to that file, and a Non-destructive system reinstall might fix the problem. That might be curing the symptoms and not the cause of the issue though, such as a power supply under/over wattage.

If it freezes at different files then its almost certainly a hardware issue not a software issue. Something is not allowing the computer to continue booting. (I once had a processer where the computer store didnt put enough thermal grease between the CPU and the Heatsink. Within about 10 seconds of turning the computer on, the CPU was overheating and froze. Simply putting more thermal grease and tightening the heatsink made the computer run as good as new.)

Post 11

Quote from LordFury;326648:
You said that when booting into safe mode, it runs a list of commands on the screen then freezes. Does it always get to the same command when it freezes? If it does, its a possible corruption to that file, and a Non-destructive system reinstall might fix the problem. That might be curing the symptoms and not the cause of the issue though, such as a power supply under/over wattage.

If it freezes at different files then its almost certainly a hardware issue not a software issue. Something is not allowing the computer to continue booting. (I once had a processer where the computer store didnt put enough thermal grease between the CPU and the Heatsink. Within about 10 seconds of turning the computer on, the CPU was overheating and froze. Simply putting more thermal grease and tightening the heatsink made the computer run as good as new.)

It's at exactly the same file every time.

Post 12

May not always be software issue if it stops at the exact same point every time.

Had that the other day.
Replaced Mobo and all was good again.

Post 13

Sometimes a crapped out window install will halt at the same file everytime too. Best bet is to repair install first then start running some hardware tests.

Post 14

Deus Ex: wtf is Mobo?

but yeah, its possible not a software issue, but thats the most likely cause in my opinion... Windows has a tendancy to corrupt files if something it doesnt like, happens at the wrong time.

Post 15

Well, thanks to your advice, it looks like Ive narrowed it down to the new power supply.....

The machine wouldnt even boot off CD, eventually giving a blue screen error after numerous tries.

I then managed to get the voltages from bios.

Today I put the old PSU back in, and here I am!

The voltage values with the old one back are all slightly lower than the new unit, except for the value for '-12.0V'.

The old box gives -12.974V, but the new one was only -11.907, flickering down as low as -11.825.

Is that a big enough difference in voltage to be the root of all the evils?

At least I'm back up anyways. Now my only problem is my original one of a fan that sounds like an idling whipper snipper..... :p

Post 16

Rated Voltages are +/- 10% AFAIK.

Post 17

The fact that it is flickering up and down, when just on the bios screen, shows that it is delivering unstable voltage.

Culprit imo, would be much worse under load.

Take it back to where you bought it, get a new one.

Post 18

Quote from BrAiN DaNcE;326857:
The fact that it is flickering up and down, when just on the bios screen, shows that it is delivering unstable voltage.

Culprit imo, would be much worse under load.

Take it back to where you bought it, get a new one.

Ta

At least 2 or 3 of the values oscillated between two readings, just at bios screen as you say.

Back to the shop it goes!