I have a HP with Windows 95 and the screen has a message that reads " Invalid system disk replace the disk and then press any key. After doing this it just repeats the message. I've tried CTRL+ALT+DEL and it shows a different screen for a few seconds and then goes back to the Invalid system screen. I've also tried to reboot and hold the F8 key to get to safe mode , but that doesn't work either. Any IDEAS?
Thanks
Zeeman49try the f5 key on BOOT......for safe mode.

do you a floppy disk stuck in the floppy DRIVE? check it.No disks anywhere but that's what it's acting likeIf there is no floppy in there, then I suspect you will find that the hard drive has bit the dust. Did anything happen to this BEFOREHAND? How old is the machine (and trhe hard drive)?Another thing that will create this condition is a weak/failing CMOS battery...part # CR2032, available just about anywhere they sell batteries.
It is EASY to replace, just take your time, make sure you are grounded and unplug the machine from all power sources.

patio.  Thanks!!!!