Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!usc!apple!motcsd!hpda!hpcupt1!swh From: swh@hpcupt1.HP.COM (Steve Harrold) Newsgroups: comp.sys.ibm.pc Subject: Re: #### Dos Upgrade... Possible w/HD? #######Message-ID: <-286529982@hpcupt1.HP.COM> Date: 25 Sep 89 15:47:46 GMT References: <11987@boulder.Colorado.EDU> Organization: Hewlett Packard, Cupertino Lines: 7 Re: Upgrading HD to newer version of MSDOS Check out the Norton Utility called "Disk Doctor" (NDD.EXE). It will condition a hard disk to receive an upgraded version of MSDOS. If necessary, it will relocate a few files to make room for the system-hidden files IBMBIO.COM and IBMDOS.COM (or whatever your manufacturer calles them). You won't have to backup/reformat or do any of these bothersome tasks.