I have a comp which had a 20gbmaster drive with 2 partitions of 10gb each, it also had a slave drive of 160gb, i have now swapped the around so as the 160gb HD is Now the master, i have deleted all the files off the "OLD" master but although it is a 10gb partition it is only showing up with 7.28gb free, show hidden files is enabled, i have emptied the recycle bin of all deletd files and restarted the comp, i have defragged it and run the windows error checking tool but it still shows up as 7.28 free. the other partition ius fine. so what i want toknow is if i format it will i then beable to clear whatevers hiding and will it then re-emerge as a useable drive or will i have to do something else to restore it to a fully functional drive?
if i understand you right ,you have only deleted the files from your old master hard drive. the lost space seems about right for the xp operating system.therefore you need to format the drive to rid it of xp. As long as you have xp on your 160gb drive all should be ok.