XP Computer wont boot! Any advice?

XP Computer wont boot! Any advice?

Author
Discussion

meeja

8,289 posts

249 months

loaf

850 posts

262 months

Thursday 30th October 2003
quotequote all
Mad Dave said:
Cheers Loaf - much appreciated.

Dunno about write caching, nor do i know how to turn it off

Ill download those files and give it a go - i tried to run setup from my XP install CD, but it wouldnt run from DOS. Presumably i can run one of those utilities you mention from bootup?

Thanks for all the help!

Dave


No problem - hope it solves the issue the download files will create the Setup boot disks from which you boot and then install the Recovery Console - I have never done it this way as I have installed the concole from the start, but Microsoft Premier Support seem to think this is the ay to go.

As regards write-caching when Windows writes to disk the disk drive can't always write sequentially i.e. start at block 1 and write the bits until you reach the end; what happens is the hardware will start writing on block 1 and then jump to (for example) block 27, then block 453 and so on. The data being written is held in a cache (memory - similar to RAM) on the disk until the complete write operation is finished - but in some cases the hardware will report back to Windows that the write operation has finished while information is still in the cache. The time between the 'operation complete' message and the operation actually completing is the window in which it can all go pear-shaped.

You can turn it off (in XP) by right-clicking on My Computer, then Properties, then Device Manager; expand Disk Drives, and right-click on the drive; choose Properties, then Policies, and clear the 'Write-caching enabled' checkbox. You'll lose some performance but it won't be that noticeable, especially on a home PC.

All the best

Mad Dave

Original Poster:

7,158 posts

264 months

Thursday 30th October 2003
quotequote all
Cheers Loaf, I appreciate the amount of time you've obviously spent on this!

I ran the disks, got to the Recovery Console and ran chkdsk /r but it looked for some other chk program that we didnt have/couldnt find.

Next plan of attack is to pull the HHD out, stick it in another machine as a slave and then pull all the info off. Then we'll format and start again

Ill let you know how we get on

loaf

850 posts

262 months

Thursday 30th October 2003
quotequote all
Mad Dave said:
Cheers Loaf, I appreciate the amount of time you've obviously spent on this!

I ran the disks, got to the Recovery Console and ran chkdsk /r but it looked for some other chk program that we didnt have/couldnt find.

Next plan of attack is to pull the HHD out, stick it in another machine as a slave and then pull all the info off. Then we'll format and start again

Ill let you know how we get on


Bugger! what program did it want to run?

Plan B sounds OK - it's worked for me on older platforms before now. Good luck

Mad Dave

Original Poster:

7,158 posts

264 months

Thursday 30th October 2003
quotequote all
Cheers mate. I tried adding the HDD to a 2k machine, but its security things kick in and wont let the machine boot as it knows the HDD shouldnt be there!

Next plan of action is to stick the HDD into my girlfriends old Win' 98 machine and move it onto there. Ive got an IDE CDR to put in it, so i can then copy the files off.

meeja

8,289 posts

249 months

Thursday 30th October 2003
quotequote all
Bear in mind that if the files you are looking for on the screwed hard drive were stored under "My Documents" and there is a login password required, you may not be able to access them, even when attached as a slave to another machine.

Don't know how you would get round this, but there must be a way?

anyone?!

Mad Dave

Original Poster:

7,158 posts

264 months

Friday 31st October 2003
quotequote all
Hmmm, hadnt thought of that. I dont think she'd have cause to have a password as its a home machine, but ill ask!

Cheers

Dave

outlaw

1,893 posts

267 months

Friday 31st October 2003
quotequote all
sounds like the virus has over writen he masterboot record.

you have to do a fix mba

fdisk does work on xp

pluss you can do a fix mba from the recovery console in xp.

fix the mba then try booting it.

if it wont boot then install xp as a repair over the top.

as a last option slave the drive to another pc and recover what you need from it if you can

ErnestM

11,621 posts

268 months

Friday 31st October 2003
quotequote all
Agree with Outlaw

ErnestM

meeja

8,289 posts

249 months

Saturday 1st November 2003
quotequote all
Mad Dave said:
Hmmm, hadnt thought of that. I dont think she'd have cause to have a password as its a home machine, but ill ask!

Cheers

Dave


If it is a Windows 2000 machine, then it is highly likely that it will be password protected

Bodo

12,379 posts

267 months

Saturday 1st November 2003
quotequote all
I have no idea about XP's boot concept, but couldn't it as well be, that the boot sector of the o/s partition is corrupted, and the MBR still intact?

If that is not the case, and the MBR is the one who doesn't work anymore, wouldn't it be possible to start XP via a bootable CD?

This assumption is based on my experience from installing two different o/s on one harddrive on seperate partitions. An additional bootloader is installed with the second o/s in IIRC the MBR, and calls the boot sectors after choosing the desired o/s when booting.
Since the CD of the second o/s supports booting from CD ("boot installed OS" as an option), it may well be possible to get access to XP's boot sector.

If that fails, it may be possible to install another o/s on the same (or a second) disk, and read the data from the NTFS partition, and copy it somewhere else outside the non-startable o/s's partiton (network, USB hdd, etc.). - Given, that the NTFS partiton is not encrypted, and hasn't got the feature to access it with a password from outside XP.

Realistic, anyone?

ErnestM

11,621 posts

268 months

Saturday 1st November 2003
quotequote all
Fixing the MBR via a floppy or recovery console is probably the best route (if it works). NT/2000/XP is real finicky booting from a point other than what the HIVE tells it to boot from (I'm sure if MS where asked they would say it was a security percaution)...

ErnestM

Mad Dave

Original Poster:

7,158 posts

264 months

Tuesday 4th November 2003
quotequote all
Hey guys,

Over the weekend, i tried to slave the drive to my Win98 machine but the machine wouldnt see it at all

The Recovery Console wont work.

Ive tried everything i can think of. Someone has suggested getting an aftermarket OS Loader - anyone got any ideas?

Cheers

Dave

outlaw

1,893 posts

267 months

Tuesday 4th November 2003
quotequote all
Mad Dave said:
Hey guys,

Over the weekend, i tried to slave the drive to my Win98 machine but the machine wouldnt see it at all

The Recovery Console wont work.

Ive tried everything i can think of. Someone has suggested getting an aftermarket OS Loader - anyone got any ideas?

Cheers

Dave


did the bios find the drive find it if not.

you dident set the drive jumper to slave.

pdV6

16,442 posts

262 months

Tuesday 4th November 2003
quotequote all
Presumably the 98 machine is fairly old, whilst the XP one is quite new.

Could simply be that the old machine's BIOS can't cope with the new (larger?) HD. Only solution to this would be to flash the 98's BIOS to a newer version that can handle the HD.

Even then, if the HD from the XP machine is formatted as NTFS, the 98 machine won't be able to read any info from it!

You mentioned trying to run setup from the XP CD in DOS. Better to try booting from the CD (may need to enable boot from CD in the BIOS), as AFAIK all genuine XP CDs are bootable. Then use the recovery console to repair the MBR.

Mad Dave

Original Poster:

7,158 posts

264 months

Wednesday 5th November 2003
quotequote all
Cheers guys.

In the end i used an NTFS Booter/Viewer to view and copy some of the contents of the drive. Im now going to format and reinstall everything!

What a pain! And its not even my bloody machine.

meeja

8,289 posts

249 months

Wednesday 5th November 2003
quotequote all
Mad Dave said:
Cheers guys.

In the end i used an NTFS Booter/Viewer to view and copy some of the contents of the drive. Im now going to format and reinstall everything!

What a pain! And its not even my bloody machine.


Don't forget to install a CD writer and some backup software, and drop many, many unsubtle hints to your friend!