Just installed new hard drive now my laptop does not want to start hp compaq nc6220

SOURCE: HP Compaq nc6320 Boot Disk

in case you can get a non boot disk , u can install it by using a start up floppy disk for win9x

SOURCE: How to install xp on hp 530

Press F10 to enter BIOS setup...
find and disable the SATA native support

Now save and exit then when you reboot and attempt to install XP you will have no problem.

Download the drivers you need from here
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=3375995&prodTypeId=321957&prodSeriesId=3375953&swEnvOID=1093&taskId=135&swLang=8

SOURCE: compaq nx9010 not connected with internet

if its was an xp o/s before new o/s .....then hit link below

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=uk&prodNameId=321852&prodTypeId=321957&prodSeriesId=321850&swLang=8&taskId=135&swEnvOID=228#11395

SOURCE: hp compaq 6720s laptop. how do i format my laptop

You don't "format" anything. If you're on Vista, just install it. If you're on XP, you need to do a full backup of _everything_ on it, install 7, then reinstall all your programs. Windows 7 isn't as cool as all the marketing makes it out to be if you're on XP.

SOURCE: HP Compaq 6910p New hard drive installed, XP os

Method 1 :  Go to BIOS and set anything with SATA disable (usually find uns=der advance setting in IDE configuration setting).
Save the setting.

Windows Xp will detect your hard drive now.

Method 2 : This days BIOS comes with only few thing to configure.if that's is the case.
Download SATA driver,here is the link

http://download.cnet.com/SATA-Driver-Intel-Ver-7-0-0-1020-zip/3000-2122_4-162224.html

you need one more software called "nlite" in order to integrate the SATA driver in Windows XP CD so that it recognize SATA drives.

Here is the link for nlite download

http://home.midmaine.com/~nlite/nlite/nLite-1.4.9.1.installer.exe

On how to intergrate SATA driver with windows XP 

Go to this page :

http://www.nliteos.com/guide/part1.html

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