Cannot boot back to Windows 95 OEM from MS-DOS due to not supported.

Cause:


Windows 95 OEM Service Release 2 is designed to be preinstalled as the sole operating system on new computers only. There is no option to boot to Windows 95 OSR2 from a previous operating system.
NOTE: Formatting a new hard drive that has Windows 95 OSR2 preinstalled, installing MS-DOS, and then reinstalling Windows 95 OSR2 renders the hard disk unbootable.

Solution:


Use the Windows 95 OSR2 Emergency Boot Diskette to make the boot drive bootable again.