What's problem when my laptop cannot send items to External memories saying " net command has stopped working"? COMPACT PRESARIO CQ57

Are there more accounts in this computer? Try to log with another one. If not you must reset your password try with nt offline password reset http://pogostick.net/~pnh/ntpasswd/ you must boot from a cd or usb and follow the instructions in this page but first try to make a backup of your important data, you can use a cd with ubuntu or other livecd OS to copy all you need to an external usb disk. All this will work easily if don't have encrypted your system.

Here are some options:
1) Use an external number pad
2) Use an external keyboard
3) Replace the keyboard (a small Phillips screwdriver and a flat head are all that are needed.)

Amazon com cq57 keyboard

I would definitely not try to do a factory restore without a full screen showing. Are you saying that the external monitor does not work for system restore?
amazon seems to have replacement LCD screens for $51.93
http://www.amazon.com/COMPAQ-PRESARIO-CQ57-229WM-SUBSTITUTE-REPLACEMENT/dp/B005IUFKKW

Please test it with an external monitor. If your laptop works good with an external monitor, then you can replace your laptop's screen. You can look for it on eBay.com (please use "CQ57-229WM screen"). Later, you can download the laptop's service manual, so you will know how to replace the screen.

What Cable Do Use to Connect Compaq C700 TV To eHow

first check the ram then check the bios battery

Use a computer with Internet access to download the drivers and then copy them to an USB memory stick. You then insert the USB memory stick inti your Compaq and install the drivers.
You can download the device drivers from the Compaq/HP WEBsupport/download page. Make sure you select your model laptop and the Windowsdrivers you require and install them. Click on this link to download thedrivers: -
www.compaq.com/country/cpq_support.html

The Touch pads the Mouse Pointer uses is pressure sensitive and sometimes without warning WILL fail to work I own a CQ50 And Have a On Off Option for the mouse pad Yours does not Apparently it Is a bad sensor If you have a warranty send it in If not best suggestion for you is buy a USB mouse and use it Otherwise trying to have it replaced without a warranty can be costly.

You can get a recovery CD from the Compaq/HP WEB site for your model computer.
www.compaq.com/country/cpq_support.html