"Can not start PC, no mouse" doesn't tell us much.
What happens when you turn the PC on? Do you get anything loading?
The usual procedure is for the BIOS to load first as it checks for hardware and memory and such, and it lists what it finds before starting to load Windows. At what stage does this PC stop, and what happens, does it freeze, or does it just continue in a loop, or what?
Assuming you can get through the initial BIOS POST procedure, (Power On, Self Test), can you then get into Safe Mode? To try that, when the BIOS has listed the main components, start tapping the F8 key gently until you get a list of Safe Mode options. If that works, then you can use the arrow keys on the keyboard to select the first option, (it should already be selected anyway), then press Enter for Windows to load in Safe Mode.
This is a default mode and so no background pictures, just black, and all icons are larger. From here you can test and see if any programs work.
Let us know what happens.
Mark
My moms pc dell dim 2400 xp home,It has symtec virus protection.I can't get in to any thing.I have it next to me,I just do not know any commands.Can anyone help Thanks!
Stinman

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