I installed NT4 Workstation on top of Win98 a few weeks ago, and now I want to uninstall NT4 without having to reformat. How do I do this? I know it can be done, because I've done it before a *long* time ago :)

Do you have the NT4 OS on an NTFS partition? If no, then boot up in Win98, delete the "WINNT" folder on the other partition and delete the two rows out of the boot.ini file on the C partition. You may be able to remove the boot.ini all together, but I can't remember for sure. If NT on NTFS partition, still change the boot.ini, boot to Win98 disk, run fdisk and delete and replace the partition that NT is installed on.

Assuming that you have FAT16 primary partition... and didn't use PM etc. to achieve dual boot... Boot from '98 bootdisk and type < sys c: > at the a: prompt (not the < >). This will replace the NT boot-loader with the '98 (DOS) version; now reboot the PC without the boot disk; '98 should start up as normal... (and the NT boot menu will not appear...) Delete the NT folder from within '98 (as long as it's not NTFS... if it's NTFS (you can't see it...); you have to remove NTFS partitions from within NT itself (Disk Admin); or use < delpart.exe > - a utility from NT3.51 Resource Kit, omitted from NT4 RK available at: http://hercules.lss.ksu.edu/download/MSSTUFF/index.htm It's run from DOS boot up. You cannot remove/delete NTFS partitions using Fdisk if they're in an extended partition... Again use NT Disk Admin to do this; or delpart.exe... Also delete the NT boot files in the primary partition. Check everything is still OK with '98. If all is well, defrag the drive to recover space etc. and re-organise the HD. Before you start out.... have an EBD for '98 handy - just in case; also the ERD/3install floppies for NT - just in case you have to get back into NT before finally 'deleting it'... Good luck, LM-S