Windows 7: Really need help - No system fuctions; D:/ driver don't work

Hello,

I have googled and searched everything, i cannot understand what is going on:

Dell 1700 Studio Laptop

None of my systems functions work ie: defragmenter, cmd prompt etc. Also, my CD driver does not work. as well, after about 20 minutes of the computer being on, my keyboard goes funny and all the keys assume weird functions. For example, 7 might be "save as" etc. My mouse mad on the computer doesn't work either (laptop) McAfee does not detect anything.

Please help me!
GM

Welcome to Windows Seven Forums.

Download Malwarebytes and run a full anti-virus scan in safe mode. This program is highly recommended by many people on ths forum.

Malwarebytes : Malwarebytes Anti-Malware is a free download that removes viruses and malware from your computer

If Malwarebytes doesn't clear this up for you, I think you are a good candidate for Repair Install

Hello,

I've ran the MaLware utility, and it found 1 currupted file and removed it. I cannot do a repair install with a disk because whatever is causing this problem prevents me from using my disk drive. "D:/ path not found"

Please help this is getting frustrating,

GM

Try this, go to Step Three...
Restoring Your Computer´s Software to the Factory Settings | Dell

A repair install is done by booting from your Windows DVD, not from within the system installed on your harddrive. In this case, the "D:\ path not found" is irrelevant.

You need to make sure the infection is out. Download and write to flash stick Microsoft Standalone System Sweeper, boot it to do a full scan without System Files running.

Now you need to repair System Files. Write the Windows 7 installation DVD to flash stick using UltraISO trial version: On File tab select Open DVD or ISO, on Bootable tab select Write Disk Image, Format, Write. Boot stick under USB, Removable or HD's on one-time BIOS boot menu, select Repair console on 2nd screen, accept any offered repair. Then boot back in click through to Recovery Tools list, open a Command Line to run SFC -SCANNOW Run in Command Prompt at Boot

If you can't find a Windows 7 installation DVD/ISO to write to stick then you'll need to burn a System Repair Disk
and try to get it to boot correctly by reinstalling your CD drive, cleaning it, borrowing or buying another, or writing disk ISO to flash stick using Win2Flash.

If you can't retrieve your files, you can copy them out using DVD/Repair CD this way: Copy & Paste - in Windows Recovery Console

Then run Factory Recovery using the link Britton gave you above, Recovery Disks you made or order, or a Windows 7 installation DVD to clean reinstall following these steps to get it perfect: Reinstalling Windows 7

Report back your progress for further steps.

aside from what's been mentioned so far, this can also happen due to an electrical problem such as a bad connection somewhere inside the machine, or bad hardware, or a bad driver, or a bad bios. You should try to figure out is this a windows problem or a hardware problem. See if you can boot to safe mode with networking, and does the machine work normally then? It would be good to boot from a standalone operating system such as knoppix on a bootable usb flash drive and use the computer for a while. If it has problems then, then you know this is a hardware problem

I agree with gregrocker.
You need to make sure the infection is out. Download and write to flash stick Microsoft Standalone System Sweeper, boot it to do a full scan without System Files running.
IMHO their isn't much can be done until we know your computer is clean. Please list the anti virus programs you have on your computer.