When trying to defrag a Compaq PRESARIO running 98, I get a message that says "you do not have enough memory to run this" I've closed everything except explorer and systray. Same thing. I've booted in safe mode. Same thing. Scandisk did the same thing but would run in safe mode. Any ideas?Is it possible that you do not have enough SPACE on your hard disk? if it is nearing it's capacity there may not be enough space for Windows virtual memory.

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Peteto free up more memory GO in the control PANEL add/remove stuff like themes etc that you do not use get a cleaner like advanced system optimizer to clean cookies temp files etc ,run scan for virus/worms and  download free ram and allways disable the screensaver when defragging how much  ram have you gotI've got 384mb of RAM. There's one other odd thing - if I go into DOS and use a "mem" command, there's something like 578 k in a reserved status. Could this be part of the problem; I've never seen reserved ram before.I used google to check on the error message number - DEFRAG009. The guy who had his hands on this machine before used Partition Magic to set up the hard drive. This, along with FAT32 is incompatible with WIN98. The fix is to put the drive in another machine with either XP or 2000, as a slave, and defrag it there. I'm gonna start over and reformat the thing.Thats why the out of mem message came up thanks for the feed BACK its always best to know your own machine