NT & Win98

Boot the system with a Windows 98 boot disk that contains sys.com.

Run sys c: to transfer the system files from the boot floppy to the hard drive. Then run fdisk/mbr to clean up the Master Boot Record, and reboot from the hard drive.

You may need to reinstall 98 on top of itself but I doubt it.

To free hard disk space, delete the following:

C:\Pagefile.sys

C:\Boot.ini (with H, S. and R attributes)

C:\Nt*.* (with H, S and R attributes)

C:\Bootsect.dos (with H, S and R attributes)

\winnt_root folder

\Program files\Windows NT

Good luck!

Make a bootdisk with sys.com and fdisk on it.
If both are in same partition (both C:\WINNT and C:\WINDOWS show at same time, only possible with a fat16 partition 2Gig or smaller), then boot from floppy, type SYS C: remove floppy, restart and remove NT files.
If separate partitions, make sure 98 is set active, then same as above.
NT files that are safe to remove are pagefile.sys, ntdetect.com,boot.ini and ntldr. These are hidden system files. Its also safe to remove WINNT folder (remeber to backup anything from "My Documents" and Dsktop, etc from winnt\profiles\%username%