I have a compaq f700 and the microphone cable was cut. where do i have to plug it in in order to work again. i do not have the plug just the two cables

You need to print this out-on someone else's computer. Hope it works for you!
Remove the battery and charger/ac adapter/power cord from your Compaq Presario F700 laptop, press and hold the power button for 20 seconds to discharge any residual current inside the Compaq Presario F700 . This clears your RAM and is like a hardware reset. Replace the battery and charger/ac adapter/power cord and turn your Compaq Presario F700 laptop on.

Boot in "safe mode". As it starts up press F8, the computer ask you if you'd like to start in safe mode. Highlight "safe mode" and press enter. See if your laptop is booting up ok .

If your Compaq Presario F700 boots ok, do the following,

Try System Restore first,
Start Menu->All Programs->Accessories->System Tools->System Restore. Choose the most recent date before you the encountered problem. If it doesn't work, try the next date.

If System Restore does not fix it, as a last resort, you might need to fdisk, reformat your laptop hard disk clean and reinstall OS, that usually fixes all bugs. Before going that route, try following,

Uninstall unnecessary programs and applications.

Scan with a antivirus program

Scan with a spyware/malware program

DEFRAG C:

CHKDSK C:

Clean up and repair registry problems with registry repair software of your choice

If the problem persists, did you check if it could be your Compaq Presario F700 laptop power cord or power source problem? Defective or insufficient power supply might cause error messages that are misleading. Take the battery out and power on your laptop with the charger only. Make sure your Compaq Presario F700 power jack and charger plug tip are securely connected. Did you notice the power jack loose? You can find laptop power jack on ebay. Fixing and soldering the power jack requires professional skill though. The charger green/blue LED should be on. If not, replace the defective charger. Compaq Presario F700 laptop battery charger, especially its power cord/cable, lifespan is limited and does not last forever, consider buying a lifetime warranty charger online from company like www.topmic.com

1plug in monitor 2.right click desktop go to properties (on XP) or screen resolution (on 7 or vista) you should see two boxes labeled one and 2 double click 2 that's you monitor...on xp in the properties window go to settings tab to find that option, if it does not show up reset your computer with external monitor plugged in and repeat process if necessary if that doesn't work you need to update driver for your graphics card/chip

Try disconnecting the main power supply connector to the motherboard, carefully, and then plug it back in. Then try and turn the computer on again.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

Vista always has sound card problem.
I had too because with my headset (microphone) It works through your sound card
but it works well now after I installed it as below
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=US&swItem=ob-78911-1
ADI SoundMAX Integrated HD Audio Driver for Windows Vista

Yep, the power supply input to the laptop is gone - the external input shorted out. You may find that the Compaq repair charges almost equal a new one.

try reinstall it with old driver, first uninstall the updated driver, then install it again with old driver.
When it's OK, don't update the driver.

Since the problem you describe is intermittent I would first suspect a loose or shorted electrical connection. To check this you will need to take the computer apart. Step by step photos of this procedure are at http://www.insidemylaptop.com/disassemble-compaq-presario-f700-notebook/ .
Once you have access to the lcd cable you can check its connection and the condition of the cable itself. If the connection is secure and the cable looks good you probably have a bad lcd. 

In this regard there is something happen on the video card cable underneath on the hinge of the laptop. I have also Presario laptop that has same issue that you encountered.If you can able to open the laptop's hinge to check the video cable connection then you can check on it by resetting the connnection though. If your not able to do so either to go in the computer shop or have to call HP/Compaq for assistance. Thank you.

Assuming you have checked the the power strip or outlet by testing it with another electrical appliance to see if it is in operation, you can test
the power supply to the unit with a tester or oscilloscope. If it still does not work then check the cable that plugs directly into the unit and replace it if necessary. You can also open the unit to check if the cable is attached properly to the motherboard.

try to jump green and any black wire from the power supply...if the fan dont work..power supply is damage..need to change..