Major computer problem :( ...please help?

get this error message when I startup my computer...?

Press F1 to run setup

Press ESC for BBS POPUP menu

Checking NVRAM...

Initializing USB Controllers...Done.

256 MB OK

USB Device(s): 4 Storage Devices

Auto Detecting First Channel Device 0... IDE Hard Disk

Auto Detecting Third Channel Device 0... ATAPI CD-ROM

Auto Detecting Third Channel Device 1... ATAPI CD-ROM

First Channel Device 0: ST3200822AS 3.01

Ultra DMA Mode-S, S.M.A.R.T. Capable and Status OK

Third Channel Device 0: HL-DT-STDVDRW Capable and

Status OK

Ultra DMA Mode-2

Auto-detecting USB Mas Storage Devices..

Device #01: Generic USB SD Reader

Device #01: Generic USB CF Reader

Device #01: Generic USB SM Reader

Device #01: Generic USB MS Reader

00 USB Mass Storage devices found and configures

A: Drive Error

Press for setup, to continue

So I press F2 and the computer tries to do something but then I get a blue screen, so I turn my computer off with the power button and the next time after I hit F2 I hit F8 for advanced startup options and select start my computer normaly and then I can get on.

Also, when I start my computer, I get this anoying thing that pop-ups and says a key component wtk kernel is missing. The computer is also extremely sluggish and randomly shuts down. The time and date is also wrong and sometimes the screen randomly doesn't turn on for a period of time, so I replaced the Cr2032 battery because I though there was something wrong with the BIOS, which I got a message before saying there was. I also put the BIOS settings back to the Default settings (and saved them) but it didn't do anything.