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Windows doesn't run on DOS 7.00 or earlier

Posted on 1998-11-10
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Last Modified: 2013-12-16
When I start-up my computer it exits windows and does into dos saying:
'This versoin of windows does not run on MS-DOS 7.00 or earlier'

How do I fix it?
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Question by:apalmer
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MATTCEI earned 30 total points
ID: 1759276
Check the size of your Msdos.sys file in the root (it's hidden,use DIR/A) - should be ~1700 bytes.If much less,like ~30 bytes,replace it with one from another Win95 system.It's contents are'nt critical,so you can use just about any Win95 Msdos.sys that you can find.

Another possibility is the wrong IO.SYS (also hidden) and/or COMMAND.COM,both also in root.Thier dates must be the same,and should match the date of other Windows core files in \Windows - WINVER.EXE is a good example.If they're the wrong ones,SYS your hard drive from a bootable floppy made with the version of Win95 that you're running (and with your SYS.COM on it).
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