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? asked in Computers & InternetSecurity · 8 years ago

Need to access computer through bootable OS disc; which one should I use?

Niece's WINDOWS 7 DESKTOP computer has virus.

Black screen + "BOOTMGR is missing. Pres ctrl-alt-del to restart".

This also occurs when trying to boot into Safe Mode.

Ctrl-alt-del does not restart comp.

~ We have no OS disc. ~

Can I just use a boot disc, get in there and run Malwarebytes?

I've seen some kind of Linux disc recommended.

~ Anyone have a boot disc suggestion and a link, please?~

Thank you, in advance!

Update:

Also - if you recommend a Linux disc- can you recommend one for non-Linux users? LOL

3 Answers

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  • 8 years ago
    Favorite Answer

    DSL (damn small linux) is the one that you can use, you need to download a iso burner so you can burn it to a disc and boot off of it.

    if your having a black screen after windows loading screen, wait about 10-15 minutes, leave it on that screen, it can sometimes be caused by windows updates, it usually passes and doesn't happen on the next restart.

    if that doesn't work, keep pressing the F8 key on startup, select 'last known configuration that worked' and see if that boots up.

    if you get the 'bootmgr is missing' on the first screen you see press the DEL key, or indicated key, it will say on the first screen 'press ... to enter setup/bios' press that. in the bios (a blue menu screen) go through the sections and find 'boot order/sequence' or something simular, change the 1st option to the HDD and second to the DVD drive (you will need to change this to first DVD drive and second HDD if you intend to boot off of a disc ) save and exit, and it should boot off the HDD and into windows.

    disconnect any USB drives/phones/mp3 players etc from the laptop/computer before booting.

    DSL http://www.damnsmalllinux.org/download.html download link under 'Where to download'

  • 8 years ago

    DSL is outdated.

    IF the bootmgr is missing, you have a bad/failing drive or something is seriously messed up.

    "Can I just use a boot disc, get in there and run Malwarebytes?" No

    Knoppix or systemRescueCD should get you to the point where you can backup data, and then you may have to run a factory restore.

    There are a few disks based on Windows PE, that may let you get enough working to boot into safe mode.

  • Anonymous
    5 years ago

    This exceeded off to my chum to. What i'd desire to understand is that in case you have made a equipment restoration disk out of your pc. in case you have no longer then discover somebody that has the comparable pc as then you definately open up the administration panel then click on help and help. Then click on make a equipment restoration or it might desire to declare equipment backup. put in a sparkling cd and fallow the guidelines. that is going to take numerous cd to create all the lower back up documents. Then positioned the 1st actual cd on your cd stress and turn on your pc. whilst it asks you besides from disk then click any button on the keyboard. Then shop on with the guidelines to reload the applying. in case you have residing house windows Vista application that to procure then instated it to the pc all you're able to do is seem fore the restoration disk and positioned it into the cd stress. Then boot it from the disk yet this time you're able to thoroughly do away with each thing from the pc via deleting it. as quickly as you delete each thing off your pc you may shop on with the guidelines the disk tells you. yet once you do no longer prefer to do all that decision the corporation you acquire the pc from and ask in the event that they'll restoration it. If it grew to become into no longer your fault they could do it for unfastened

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