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error message when logging on

Discussion in 'Earlier Versions of Windows' started by mscc63, Feb 16, 2003.

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  1. mscc63

    mscc63 Thread Starter

    Joined:
    Feb 16, 2003
    Messages:
    1
    My pc is a pentium pro running Windows 95 (I think). My problem is when I turn on my pc it comes up with the following message..... Invalid system disk Replace the disk, and then press any key..... If anyone can help I would greatly appreciate it.. I am not very computer smart. Thank you!!!
     
  2. Styxx

    Styxx Banned

    Joined:
    Sep 8, 2001
    Messages:
    4,888
    To determine your operating system version; Right-click My Computer; Point to Properties; Under the General tab it will say your Operating System how much RAM you have.

    With a Windows Startup disk for your Operating System (Win95/98/Me) in the [A] drive (you can get a Windows Startup (boot) disk from http://ww.bootdisk.com) boot without CDROM support; at the [A] prompt type, sys c:, and strike Enter,; remove the boot disk and hold down the Ctrl + Alt + Delete keys.
     

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  3. TonyKlein

    TonyKlein Malware Specialist

    Joined:
    Aug 26, 2001
    Messages:
    10,392
    It's often possible to correct this by reinstalling the Windows System files.

    From the MS Knowledge Base:

    - Start your computer by using the Windows 95 or Windows 98 Startup disk.

    - At the command prompt, type the following commands, pressing ENTER after each command:


    c:
    cd\windows\command
    attrib c:\msdos.sys -s -h -r
    copy c:\msdos.sys c:\msdos.xxx
    a:
    sys c:
    attrib c:\msdos.sys -s -h -r
    del c:\msdos.sys
    copy c:\msdos.xxx c:\msdos.sys
    attrib c:\msdos.sys +s +h +r


    - Remove the Windows Startup disk, and then restart the computer.

    WARNING : If you are using Disk Manager or any other disk drive overlay program on a hard disk, make sure that the overlay driver is loaded before you use the sys command on that hard disk. If the overlay driver is not loaded and you use the sys command on the hard disk, the drive may not be recognized as being partitioned by the disk drive overlay program and you could experience loss of data or an inability to boot from the drive.

    Although you can use the sys command with Ontrack Disk Manager and later versions of MicroHouse EZ-Drive (or EZ-Max) after the overlay driver is loaded, earlier versions such as EZ-Drive 2.01s require that operating system files be copied to the overlay installation disk and installed by the overlay utility. In such cases, the overlay may be damaged if you use the sys command on the hard disk.
     
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