How do i upgrade my version of dos?

I have an older computer, it was running on windows 95 plus. it only starts in dos and i can go no further. i have tried to install a newer version of windows but it tells me my version of dos is too old and i need to upgrade to version 6.0 or higher. i was told by a friend i needed to uninstal window first in order to upgrade my dos. i am good with computers, but this has gotten me lost. i don't know how to uninstall or how to upgrade. what can i do

 

Ensure your system meeets the minimum requirements for the OS you're looking to install.

Which 'newer' version of Windows do you mrean?

The error message you describe would not enter into the picture if you formatted your HDD then clean installed Win98. Please see the following attachment for more information.

 

You can download DOS 6.22 from "http://www.oldos.org/os.htm". Your question doesn't make sense. Are you trying to install a version of Windows from upgrades or what. Anyway, the DOS 6.22 download is free.