Using Windows and MS-DOS 5 Upgrade After Installing MS-DOS 6.xLast reviewed: November 21, 1994Article ID: Q98485  | 
	
	
 
The information in this article applies to:
 
 SYMPTOMSAfter you upgrade to MS-DOS 6.0 or later, you may have trouble reinstalling Windows from your Windows and MS-DOS 5.0 Upgrade disks. If you need to reinstall Windows at a later date, the Setup program will look for MS-DOS 5.0 or earlier and may attempt to reinstall MS-DOS 5.0. 
 CAUSEAfter you install MS-DOS 6 Upgrade, the Setup program on the Windows and MS-DOS 5.0 Upgrade disks may attempt to install MS-DOS 5.0. If you run Setup from Disk 1 of the Windows and MS-DOS 5.0 for IBM PS/2 package, you receive the following message: 
 Insert Disk 1 and press CTRL+ALT+DELIf you follow the instructions in this message, Setup attempts to install MS-DOS 5.0. If you are using the Windows and MS-DOS 5.0 Upgrade package, you receive the following message: 
 Cannot identify your version of DOS. Press Enter to exit Setup. WORKAROUNDTo install only Windows from either the Windows and MS-DOS 5.0 for IBM PS/2 package or Windows and MS-DOS 5.0 Upgrade package, use the following steps: 
 
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	KBCategory: kbsetup kbinterop 
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