my desktop PC is acting silly

[MunkeyCheez]

yup.
basically, programs crash all of a sudden within about 1 - 15 mins, so when i go to force close those programs my computer basically gives me finger and does nothing at all.
so i thought it could've been an internal problem..
so i opened up my computer and i was met with a wall of dust, so i used the hoover to suck it up.
restarting my computer, i was met with the slowness again.

what the hell should i do now?
should get my computer reformatted or something?
btw, i cannot system restore or defragment my computer. because my computer refuses to do so (as in it takes forever or it displays some handicapped message saying how it couldnt do whatever)
Windows XP SP3 (don't laugh) if you're wondering what OS i'm using

[Ad Bot]

[Blooker]

Maybe a bug, maybe a virus, maybe you need to update your Windows XP
(Maybe you should get Windows 7 hue)

[Fluff-is-back]

Can you give us the age, and specs of the computer? please.

Also, never hoover a computer; always use compressed air.

[Tokthree]

so i opened up my computer and i was met with a wall of dust, so i used the hoover to suck it up.

i was met with a wall of dust, so i used the hoover to suck it up.

so i used the hoover to suck it up.

hoover

You dun goofed

[MunkeyCheez]

Can you give us the age, and specs of the computer? please.

Also, never hoover a computer; always use compressed air.

i cant really give you an accurate specs list as i cant really open dxiag.exe because of the computer is dumb but whatever.
age: probably 8 years old. rebuilt 2011 with some of the parts... 3 years or something?
specs;
graphics card: ati radeon 6775hd
processor: 2ghz ?

sorry for being so useless.

[Flush535]

Did you try starting in safe mode?

[MunkeyCheez]

Did you try starting in safe mode?

i couldnt select the safe mode option because the arrow keys didnt work in the bios for some reason

[KoopaScooper]

i couldnt select the safe mode option because the arrow keys didnt work in the bios for some reason

NTLDR ≠ BIOS Setup
ensure the keyboard is properly connected and your BIOS is recognizing it as a keyboard

[Fluff-is-back]

I'm going to take a guess that your OS hasn't been maintained since you bought it.

Best thing to do would be to reinstall a fresh copy of windows.