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Pc Needs Boot Diskette After C: Format.

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4 replies to this topic

#1 Nismo44


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Posted 20 October 2007 - 12:53 PM

well i got a computer with some problems..

i got the pictures from the hard drive and then decided to format it..
as it didn't seem to start the setup on that pc, i put the hard drive into my computer and formatted it in there..
but now as i wanted to put the hard drive back where it belongs, the pc says something like this:

"Invalid BOOT diskette.
Please insert valid BOOT diskette in A:"

i tryed to change the boot device to cd rom, IDD, and disabled, but it still wants its boot diskette..
and i tryed to disconnect the diskette reader but nothing..
but it works on my PC..

but when i put the windows xp cd in it, the setup started and i thought about repairing the windows, but i thought maybe someone could give me an advice to get over that problem more easily..

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#2 hamluis



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Posted 20 October 2007 - 01:28 PM

Well...I guess I don't understand.

The XP CD formats, no need for a boot disk at all.

I would:

a. Make certain that the BIOS primary boot option reflects "optical drive", "CD/DVD", whatever my BIOS reads that will enable a boot from CD.

b. I would delete all existing partitions, once XP started to launch the install process.

c. I would create my new partition for XP (which XP will format) and allow the install to proceed.

The one other thing I would check...is that the BIOS recognizes the drives which are actually installed on the system (first screen).


#3 garmanma


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Posted 20 October 2007 - 01:28 PM

When you changed the boot order in the BIOS to have the CD first, did you "save changes on exit"?
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why won't my laptop work?

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#4 Nismo44

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Posted 21 October 2007 - 04:57 AM

i have already formatted that hard drive.
but i did it on my pc and there it works just fine..
but when i put it into that computer where it was before, it needs a boot diskette..
and yes, i tryed to change the order, disable all, change between different boot devices (IDD/CD ROM/CD ROM&IDD)
and as i already said, i even disconnected the floppy reader and disabled it from Setup..

and of course i have saved these settings..

it's always the same except when i inserted XP cd..then the windows setup started, but i thought maybe there is some easier way than repair or format it again..

Edited by Nismo44, 21 October 2007 - 04:59 AM.

#5 usasma


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Posted 21 October 2007 - 07:26 AM

What I suspect is happening is that the BIOS is confused. It can't find a boot device so it "defaults" to the floppy (probably a built in routine that's not listed in the BIOS).

When you insert a bootable CD it merrily chugs away - happy that it found some bootable media.

What I suspect has happened is that formatting the disk on your PC did not install a boot sector on the hard drive - so it can't boot from it. I also suspect that you've got a copy of Windows on this hard disk that you want to boot from - and if that's the case, then the repair installation is the only route that I know of to attempt to fix it.

You may be able to "fix" it through the Recovery Console - but if my suppositions are correct there'll be more issues later on.

Here's a couple of articles about these situations:
Moving a hard drive with XP on it: http://www.michaelstevenstech.com/moving_xp.html
Repair install of XP: http://www.michaelstevenstech.com/XPrepairinstall.htm
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