I have a licensed copy of dos 6.2 and I am trying to install it on an old laptop. The on screen instructions say to put set-up disk 1 in drive a: and press ctrl+alt+del and computer will re-boot and start set-up. All I get is "invalid system disk". I have a win 3.1 start-up disc so I can get to the a: prompt, but I am stuck after that. Can I make a dos dir on hard drive and copy and expand files in that directory without having to use expand.exe on each file. Appreciate any help.