How to mend Compaq Presario C300

i have a compaq computer that is freezing?

how can I get my screen resolution back to normal?

help I need this for work?

my laptop won't come on why ?

bootgr error ?

when i turn the pc on it keeps saying non system disc?

upgrade processor?

How can I enable my desktop to work on broadband?

reboot my computer?

Desktop Pc Modem?

rev up online with foxfire?

how do i make space in my d drive?

My Compaq will not start when I push the power button. ?

slow running compaq presario?

stupid question abt my compaq presario m2000?

I need a CD rom drive for my Compaq 7400?

how can I correct a horizontal screen image to vertical?

can not get my compaq sr2173wm to power up no sign of power anywhere and id?

windows xp bootup loops?

No sound from my compaq?

pc transfer ?

how can i fix my comaq?

cmos battery?

how can i fix a cd-rom drive,compaq,ltn-486s?

how do you replace a compaq presario F500 sceen?

how to fix my pc to go on line?

it is curreptd?

how do i unlock my computer?

defrag?

how do i reset it back to new?