PC Review


Reply
Thread Tools Rate Thread

250 gig drive showing up as 170 gigs after xp repair

 
 
Microsoft
Guest
Posts: n/a
 
      15th Dec 2004
I have 2 250 gigs maxtors. one primary and one slave. The slave is now
coming up as 170 gigs with no unallocated space. I suspected a corrupt boot
record. Here are the details

1) Repaired windowsxp pro
2) When windows came back up. The 250 slave that had 170 gig partition and
about 70 unallocated came up as "disk unreadable"
3) Read about diskprobe, but used utulity called active@ partition recovery
3.0. It saw the partition as deleted and allowed me to put it back. The
utility show 60 gigs unallocated
4) Boot back to XP and the partion and data are there, but not the
unallocated space. I don't have enough room to move my data off and blow
everything away. So any ideas how I can get my unallocated space back?

Partition magic sees the drive as 170 gigs also.


Thanks...


 
Reply With Quote
 
 
 
 
jazz
Guest
Posts: n/a
 
      15th Dec 2004
Try viewing the partition form dos or a partition manager from outside
windows xp. a 250 gig drive will have to use LBA mode were the actual CHS is
different and a little program translats to provide the increased space.
Also, it is possible that the recovery tool you used translated the LBA
wrong. Ther are 2 or 3 different techniques use with LBA adressing and this
problem isn't all th at uncommon (especialy if the drive was formated on a
different mainboard)

You may run into issue also if the ide chipset on the mainboard doesn't
fully support 48 bit adressing wich allows for the larger drive adress
space. The hardrive probably came with an installl disk that could do a
trick to allow full usage of the disk even though it wasn't supported. My
guess is that the partition recovery too you used might have had some
dificulty in reading this information and interpreting it properly resulting
in the boot sector being marked improperly and the diskspace is being
reported incorectly.

Unfortunatly i do not know of any 100% non destructive ways to repartition
or resize the partition or even recreating the partition tables. You may try
somethign like partition magic 8.0 (or above) to see if it can determin the
partition tables and resize them. Windopws xp in itself has in some cases
not been able to see partition as unallocated free space when i have turned
them off in the diskmanager snap in. A raw dos/windows 98 boot disk might
be able to see this but the version of fdisk that come with it might be
limited in what size partitions it can see. I would goto www.bootdisk.com
and get a windows 98 boot disk then goto http://www.23cc.com/free-fdisk/ and
download the free fdisk. extract the program and copy the program folder to
the boot disk you created. Then after starting the computer to the boot
disk, c d into the program dir and run fdisk from there. As alway it is a
good idea to have your data backed up before making any changes. Also once
you get you problem figured out, you mihgt want to back up the boot sector
of the drive. i forget the programs names that can do it but a google search
should give you somethign. If this ever happens again you could just restore
the partition and (hopefully) be done

Microsoft" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> I have 2 250 gigs maxtors. one primary and one slave. The slave is now
> coming up as 170 gigs with no unallocated space. I suspected a corrupt

boot
> record. Here are the details
>
> 1) Repaired windowsxp pro
> 2) When windows came back up. The 250 slave that had 170 gig partition

and
> about 70 unallocated came up as "disk unreadable"
> 3) Read about diskprobe, but used utulity called active@ partition

recovery
> 3.0. It saw the partition as deleted and allowed me to put it back. The
> utility show 60 gigs unallocated
> 4) Boot back to XP and the partion and data are there, but not the
> unallocated space. I don't have enough room to move my data off and blow
> everything away. So any ideas how I can get my unallocated space back?
>
> Partition magic sees the drive as 170 gigs also.
>
>
> Thanks...
>
>



 
Reply With Quote
 
Mas G
Guest
Posts: n/a
 
      21st Dec 2004
It almost kills me to say this.. but I installed SP2 and every issue I had
went away... go figure..
"jazz" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> Try viewing the partition form dos or a partition manager from outside
> windows xp. a 250 gig drive will have to use LBA mode were the actual CHS

is
> different and a little program translats to provide the increased space.
> Also, it is possible that the recovery tool you used translated the LBA
> wrong. Ther are 2 or 3 different techniques use with LBA adressing and

this
> problem isn't all th at uncommon (especialy if the drive was formated on

a
> different mainboard)
>
> You may run into issue also if the ide chipset on the mainboard doesn't
> fully support 48 bit adressing wich allows for the larger drive adress
> space. The hardrive probably came with an installl disk that could do a
> trick to allow full usage of the disk even though it wasn't supported. My
> guess is that the partition recovery too you used might have had some
> dificulty in reading this information and interpreting it properly

resulting
> in the boot sector being marked improperly and the diskspace is being
> reported incorectly.
>
> Unfortunatly i do not know of any 100% non destructive ways to repartition
> or resize the partition or even recreating the partition tables. You may

try
> somethign like partition magic 8.0 (or above) to see if it can determin

the
> partition tables and resize them. Windopws xp in itself has in some cases
> not been able to see partition as unallocated free space when i have

turned
> them off in the diskmanager snap in. A raw dos/windows 98 boot disk might
> be able to see this but the version of fdisk that come with it might be
> limited in what size partitions it can see. I would goto www.bootdisk.com
> and get a windows 98 boot disk then goto http://www.23cc.com/free-fdisk/

and
> download the free fdisk. extract the program and copy the program folder

to
> the boot disk you created. Then after starting the computer to the boot
> disk, c d into the program dir and run fdisk from there. As alway it is a
> good idea to have your data backed up before making any changes. Also once
> you get you problem figured out, you mihgt want to back up the boot sector
> of the drive. i forget the programs names that can do it but a google

search
> should give you somethign. If this ever happens again you could just

restore
> the partition and (hopefully) be done
>
> Microsoft" <(E-Mail Removed)> wrote in message
> news:%(E-Mail Removed)...
> > I have 2 250 gigs maxtors. one primary and one slave. The slave is now
> > coming up as 170 gigs with no unallocated space. I suspected a corrupt

> boot
> > record. Here are the details
> >
> > 1) Repaired windowsxp pro
> > 2) When windows came back up. The 250 slave that had 170 gig partition

> and
> > about 70 unallocated came up as "disk unreadable"
> > 3) Read about diskprobe, but used utulity called active@ partition

> recovery
> > 3.0. It saw the partition as deleted and allowed me to put it back.

The
> > utility show 60 gigs unallocated
> > 4) Boot back to XP and the partion and data are there, but not the
> > unallocated space. I don't have enough room to move my data off and

blow
> > everything away. So any ideas how I can get my unallocated space back?
> >
> > Partition magic sees the drive as 170 gigs also.
> >
> >
> > Thanks...
> >
> >

>
>




 
Reply With Quote
 
jazz
Guest
Posts: n/a
 
      22nd Dec 2004
I'm glad to hear that. SP2 would act like a fresh install in some ways. I'm
going to asume it looked at the boot record and partition tables and rewrite
it but this is only a guess. There may also have been some issue with the
disk manager inside XP and SP2 fixed it. At least now you have a
funnctioning system that resembles what it should. Good luck,

"Mas G" <(E-Mail Removed)> wrote in message
news:B9%xd.5959$(E-Mail Removed)...
> It almost kills me to say this.. but I installed SP2 and every issue I had
> went away... go figure..
> "jazz" <(E-Mail Removed)> wrote in message
> news:%(E-Mail Removed)...
> > Try viewing the partition form dos or a partition manager from outside
> > windows xp. a 250 gig drive will have to use LBA mode were the actual

CHS
> is
> > different and a little program translats to provide the increased space.
> > Also, it is possible that the recovery tool you used translated the LBA
> > wrong. Ther are 2 or 3 different techniques use with LBA adressing and

> this
> > problem isn't all th at uncommon (especialy if the drive was formated

on
> a
> > different mainboard)
> >
> > You may run into issue also if the ide chipset on the mainboard doesn't
> > fully support 48 bit adressing wich allows for the larger drive adress
> > space. The hardrive probably came with an installl disk that could do a
> > trick to allow full usage of the disk even though it wasn't supported.

My
> > guess is that the partition recovery too you used might have had some
> > dificulty in reading this information and interpreting it properly

> resulting
> > in the boot sector being marked improperly and the diskspace is being
> > reported incorectly.
> >
> > Unfortunatly i do not know of any 100% non destructive ways to

repartition
> > or resize the partition or even recreating the partition tables. You may

> try
> > somethign like partition magic 8.0 (or above) to see if it can determin

> the
> > partition tables and resize them. Windopws xp in itself has in some

cases
> > not been able to see partition as unallocated free space when i have

> turned
> > them off in the diskmanager snap in. A raw dos/windows 98 boot disk

might
> > be able to see this but the version of fdisk that come with it might be
> > limited in what size partitions it can see. I would goto

www.bootdisk.com
> > and get a windows 98 boot disk then goto http://www.23cc.com/free-fdisk/

> and
> > download the free fdisk. extract the program and copy the program folder

> to
> > the boot disk you created. Then after starting the computer to the boot
> > disk, c d into the program dir and run fdisk from there. As alway it is

a
> > good idea to have your data backed up before making any changes. Also

once
> > you get you problem figured out, you mihgt want to back up the boot

sector
> > of the drive. i forget the programs names that can do it but a google

> search
> > should give you somethign. If this ever happens again you could just

> restore
> > the partition and (hopefully) be done
> >
> > Microsoft" <(E-Mail Removed)> wrote in message
> > news:%(E-Mail Removed)...
> > > I have 2 250 gigs maxtors. one primary and one slave. The slave is

now
> > > coming up as 170 gigs with no unallocated space. I suspected a

corrupt
> > boot
> > > record. Here are the details
> > >
> > > 1) Repaired windowsxp pro
> > > 2) When windows came back up. The 250 slave that had 170 gig

partition
> > and
> > > about 70 unallocated came up as "disk unreadable"
> > > 3) Read about diskprobe, but used utulity called active@ partition

> > recovery
> > > 3.0. It saw the partition as deleted and allowed me to put it back.

> The
> > > utility show 60 gigs unallocated
> > > 4) Boot back to XP and the partion and data are there, but not the
> > > unallocated space. I don't have enough room to move my data off and

> blow
> > > everything away. So any ideas how I can get my unallocated space back?
> > >
> > > Partition magic sees the drive as 170 gigs also.
> > >
> > >
> > > Thanks...
> > >
> > >

> >
> >

>
>
>



 
Reply With Quote
 
 
 
Reply

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Disappearing Gigs from Hard Drive ira Windows XP Hardware 6 25th Jul 2009 08:37 PM
250 gig drive showing up as 170 gigs after xp repair Microsoft Windows XP Help 3 22nd Dec 2004 02:35 AM
My 80 Gig hard drive is showing up as 31.4 Gigs =?Utf-8?B?QnJhZA==?= Windows XP Help 4 21st Dec 2004 03:34 AM
hard drive gigs lost? James Coyle Windows XP Basics 1 13th Oct 2003 08:17 PM
XP Recognizes 80 gig Hard drive as only 30 gigs HELP Scotty Windows XP Hardware 3 27th Sep 2003 09:13 PM


Features
 

Advertising
 

Newsgroups
 


All times are GMT +1. The time now is 02:16 PM.