How do i find out if my computer has built in wifi

Ask the company direct. First tell them that you would like a warranty repair.

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HP compaq old
what makes you think, this laptop sports WIFI direct connect?
wow!
what are you doing name reason, a job a task.?

here ask at HP ,
HP owns COMPAQ, COMPAQ is DEAD now.
but does have very limited support , like here.
why in the world use XP the VIRUS MAGNET. ?

https://h30434.www3.hp.com/

the manual covers that at hp.com
old PC HP, F10 is the key
years later ESC
yours is ESC told on page 123pdf , echo of old manual.

https://www.manualslib.com/manual/359061/Hp-Compaq-Nx7000.html?page=123&term=esc&selected=14#manual

powe on
as splash compaq
hammer F10-
bingo for BIOS

Hello
well, you need 2 things

1) Wireless antenna in your Presario, or lan cable.
2) internet access wifi.
3) of course, knowledge on how to connect to wifi network, with your passcode and username.

old compaq. LAPTOP,, 14 years old now, Im amazed it even glows at all with CCFL lamps not dead, wow.. its like a musiem piece.
(sorry , grin) (back ground lamps CCFL)
NO OS stated by you , XP, ????? why must helpers beg?

and wifi , (difficult that)
it's not wifi, its just that you use wifi most the time ,SEE? right?
in fact we could remove the wifi module. and prove that.
disabling wifi is airplane mode, (todays jargon) but means the wifi transmitter is now OFF (airplane safe is THAT)

the blue screens tell a lot, and no posted photo of one by you.
sad,
BSODs we call those blue screens of *****
XP love to do that. (even with Bill Gates on stage) LOL
BSOD are hard. Im sure it says 2 words, HALT and DUMP !
here is a list of causes.... for sure 14year old relics (legacy junk)

1. the main battery inside is bad or shorted, remove it run AC , does it, wow, it does, problem solved in minutes flat.
2. the Inverter is shorted (CCFL card) and bom, BSOD
3. bad RAM, BSOD XP fast , try 1 stick at a time.
4. Bad HDD< can corrupte files and XP BSODS in a blink !
5. any thing shorted, remove all usb devices yet?
6. remove extra ram. , unplug CD drive?

all techs know rule 1,
is it hardware or software, (this is alway first after #1 above done)
to do that we open the CD tray, insert our free LIVE LINUX CD
and boot to linux
wow it runs for hours ok, proving what, HARDWARE IS BAD
if Linux fails its bad hardware (running period correct disk)
if linux runs i next do a full HDD test, using the great linux program there to do that.

or take that handy dandy, Compac (now HP) 3 disk install disks
set and load disk one, does that run? ok
even full restore. or does it show HDD errors.? oops HDD is bad.

the BSODs are really what.
it means the PC attempted to run and ******* instruction.
in simple terms, it means a program is corrupted.
or tried to do ******* things with memory.
that is why test test the PC with a boot CD to see if the PC is ok.
see?

mr wifi real.
sure this can short, but if it is removed and it still BSODs
its not this card, its other cards, shorted. or not at all. cards.
we call this mini-PCI slot card.

no operating system stated, wow, 14 windows and zillion linux. and PS2 OS. even freedos.
I have no idea at all what you have there;.
is this wifi or
Ethernet cable lan connected. tell helper wired or wireless.
then be more accurate as to what is there.

card, what network card, name it, model, and number.
its a desktop and as all desktops vast things can be fitted here.
NIC card PCI, LAN
Wifi card PCI, WLAN
Nic USB dongle
Wifi USB dongle.
'
we cant see what you have there, a photo works or words.

my guess is wifi dead, as most post here, due to complexity of wifi.
if not say so please.

Buy the Toshiba satellite. you will live longer....

Hi
It is proberly not the battery - it is a problem with the drivers that starts up the cooling fan. - symtoms: stops ramdomly - malfunktion of some funktions - and indeed gets hot
go to compaq home page for driver opdate

love

Trying cloning the mac address some isp's have started blocking home networks by requiring only one mac address the option to clone it should be in your routers wireless settings.

Hi, Have you installed the driver for your wireless card since you re-formatted?

Right click on my computer and go to properties, select device manager. all of your hardware will be listed there. are there any yellow question marks? these are devices that need drivers.

Your wifi card will probably be called 'network adapter'. go to the sony vaio website and download the right driver for your wifi card