mup.sys hanging win xp

Posted on 2004-11-26
Last Modified: 2012-06-27
i cant boot into win xp
in safe mode it stops at mup.sys

i roignally had this problem last week and though my h-drive had broke
reinstall xp on my hdrive
and everything worked fine
then last night i got the problem again

i need to sort my pc out
so to cut a long story short i i gutted and rebuilt my pc

just turned it back on and i still have the problem

i tried reinstalling xpor getting to recovery console and when it gettings to the starting windows page
it hangs

i tried everything swapping ram, enabling vga mode
everything bloody thing

now i am about to smash my stupid computer is
i am really desperate and need any advice on how i can stop this from happening again
or how it happened ion the first place

i am currenly about to reinstall windows on the hd-drive i took out
plug that into my pc
turn my new hdrive into a slave then grab everything off it

this is the second time it happened to two different drives on two differemt ram/cpu set ups

in both instances i didnt do anything to the pcs

the problem misterously appeared after turning on the pc
no updates no new hardware


i have only got 135 points but will increase to whatever i have avauilble for some good advice

Question by:liseperu

    Author Comment

    i am running xp with sp2
    LVL 20

    Accepted Solution

    Could be a processor or mobo problem after this many reformats? I think this certainly points to hardware issues,

    "this is the second time it happened to two different drives on two differemt ram/cpu set ups" - Is there anything consistent in your setup ie any item that you have kept the same?

    I look after stacks of XP pc's (although am still avoiding sp2 like the plague) and have never encountered this particular problem. If there is any one piece of hardware (or even software) that has remained consistent throughout your attempts to resolve this, then I'd maybe look to that. I'd also maybe check that whatever components you are using are on the HCL for XP,

    MUP.sys hangs WindowsXP - solution
    Introducing Windows XP

    If this seems obvious I apologise - it never hurts to be able to rule things out,

    Deb :))

    Author Comment

    well the only thing that isthe same is the power syupply
    its only 3 months old
    and is 440w

    as far as hardware thats what i thought it could be

    i replaced mobo cpu ram hdrvie

    still got same problem
    like i say i am reinstalling xp on my old hdrvie

    i have scowered internet and loads of peeps have this prob

    and everyone has a diffenrt solution
    none of which helped me

    i have never had this problem before

    so i am at a loss to prevent it from happening again
    as it just seemed to happen

    for no reason - i am scared to turn my pc off now!!

    why are you avoiding sp2 ?

    i think this my be the problem
    i also have auto matic updates on
    so something could have downloaded with out my knowledge that messed my system when i rebooted the next day

    i dont know
    my other pcs run sp2 fine
    but they both habve auto updates turned off

    does anyone have a difinative answer for this issue?

    out of interest does anyone know what loads after the mup.sys driver?

    LVL 9

    Expert Comment

    remove any usb devices atached to the computer as mup.sys is something to do with usb all so any usb2 cards or if the mother board has usb2 disable it in the bios till you can get the updated driver

    Author Comment

    i just installed xp on my other pc
    tested it - it worked ok
    then when i moved the hd back into the other computer i got the same errors
    i will disable the usb 2 thingie and see

    Author Comment

    i had one thing in the bios for enabling usb
    i disabled it
    still same problem

    can i disable pci slot from bios or do i have to remove cards
    though i have tried removing all cards

    biut i did put them back in

    am really baffled

    also my cdrom wont let me boot
    it just keeps asking for bootable cd
    this cd is fine
    just installed onto other pc from it?

    can a monitor cause problems?
    i did change my nmonitor
    though this was after i had my first failure


    Author Comment

    just tried installing another cdrom driver
    not getting anywhere
    that gave the same error

    insert boot disk etc

    whats going on

    Author Comment

    i removed the graphhics card put a new one in
    and the message i get now when starting up

    system failure insert boot disk and press enter
    althoiugh it wont let me boot
    it just keeps showing that message\

    any ideas?

    LVL 1

    Assisted Solution

    during reinstallation/installation of XP :
    is this what u faced ?
    normally, when u try to load windows/os (especially XP) it'll hang when it goes to the blue starting screen.. ie : ih angs on loading kernel.dll, etc etc.. but normally it hangs around tht area.

    during booting/reboot:
    is this what u faced ?
    sometime it also hangs when when u try to load the windows - ie : - xyz.dll not found etc etc.. and ask to ask u to reinstall the OS.. rite ?
    well.. i faced those problems in da past. what i knew was.. it normally happend to those old clone machine or frankkenstinzed machined.

    nor mally i would took all the cards out from the mother board and try to re-slot in again. maybe some time, while u were trying to adjust or move the h/disk, u have accidently tilted the ram/processor/agp etc. try to fit in those c whether does it fails.

    another 1 thing.. as per old forum.. u have posted.. the defect m.board.. as what i do believe.

    well.. i more thing u can try.. try to shift the IDE cable of your cd-rom.. means (try to use the other machine's IDE cable. re-shift it) it might help.

    -best of luck : john


    Author Comment

    ok i have tried everything
    i officailly give up
    i am calling the machine man tomorrow

    after replacing everythin in side my pc
    i am still getting nothing

    oh well will let you know how it goes
    LVL 1

    Expert Comment

    k.. good luck..

    Author Comment

    no joy
    the computer repair dude is baffled
    thinks my new motherboard is faulty and i need a new graphs card

    would be better if i just brought a new computer

    and chaeper

    where is the mega-expert who can give a definative solution on this mup.sys rubbish

    what happens after this mup.sys thing on start up

    i tried to disable it and then it just froze on the driver before it


    LVL 1

    Expert Comment

    i found this from a friend of mine.. but u can try

    what i found on the web :

    Boot off the windows cd, load the recovery console.
    Type "disable mup"
    Hit Enter
    All done, windows works. Mup.sys is the service to connect to Novell servers. %99.99909 of people won't need this.

    Maybe an admin should sticky this. Almost every Win NT/2K/XP/2003 user will encounter this at some time or another.

    another 1 :

    Author Comment

    i tried to disable mup
    and it just hung on the driver before
    LVL 9

    Assisted Solution

    OK lets try some basic diags open the case remove all pci cards except the vid card now check the jumpers on the hard drives and CD roms are they set correctly next start the computer go in to the bios and look for an option to load safe defaults then reboot go back to the bios and set first boot device to CD place you xp CD in the drive and reboot attempt to install windows post back with results

    Author Comment

    sorry i forgot to close question!!!

    the problem was the motherboard
    i replaced that with a new one that was faulty

    bad luck!!!

    so its sorted now
    but the h-drive was ruined in process

    all i can say is anyone who comes to this page looking for an answer to their mup.sys  problems

    cus i dont know it could be anything!!!

    thanks for all your help
    i have awarded points to the most helpful
    though no answers were definative


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