Hello. (the fan turns on, then off , that it?)
a PC that self turns off, is power overloaded. tell what the fan does heck even clean it .
NO OS stated, why post lacking that.? xp, w7/8/10????? vista?
NO method for restore stated, must we guess? what MEDIA"?
so what does shutting down mean.?
just windows (unstated) bad, locks up or goes BSOD.
or does it mean the PC turns its self 100% off, silent fan silent HDD? dead silent from fan ok and hdd sounds ok.
if it really turns off, then take out that huge battery there.
they short, get it out of there first, run on AC pack forever. you can. so this is always first, and only takes, 4 minutes work.
Does it run now,(btw , power loss has 10 to 20 causes not 1)
we sometimes have to strip a system to find what shorted.
things in the real world can short, many things. in fact.
NEXT:
then do the long reset posted on HP real site 1,000,000 times. there. endlessly.
with main battery out, ac pack pulled.(both)
push power button for 10 to 30 seconds. this resets sleep modes ,etc.
put back only AC pack ONLY, does it turn on now and say on , does the fan work the fan must work and not be packed in lint.
ok if it stay on (fan /hdd sounds) then we do BIOS NEXT.
PCs boot in a serial order , in fact.
does the F10 ey works as it prompt you for 7 years
do you get text? ever?
power on, see text do as it states, "hit F10 to enter hp setup"
means to hammer F10 to enter bios. do so now.
F10 is BIOS page entry command,
this screen is LED so the back lamps never fail, like earlier owns do.
leaving what, next, if no text or BIOS acts up, or BIOS time and date are wrong, then RTC CMOS coin cell is dead. new one. now.
Coins fail at 7 years on average. a cheap and easy fix.
when the coin goes dead, BIOS goes dead with it (goes mad)
if that is ok and just the HDD will not boot,. then try F11 magic key.
F11 is full recovery to day one stated, HP OS, (unstated) and all HP magic driver are renewed, this is the correct way.
if the HDD has been slammed, F11 will be dead now. for ever.
if F11 is dead, we then test the HDD.
all in this order.
your PC is 2010, like mine, so 7 years old is on the cusp of
coin cell bad,(but usually are ok now, if lucky like my 3 are)
full support page is here.
the real support page at HP,. Fixya is not HP ,not now or ever.
https://support.hp.com/us-en/product/hp-probook-4520s-notebook-pc/4145198/manuals
how to test a HDD, if the motor is silent it is dead. ear to side of drive, dead silent (PC fan running sure) all test here are free.
zero cost. just work.
http://www.pcdied.com/brick-dead.html
so the power button is pushed the fan turns on right>?
then goes dead silent,? surely you can tell what fan does , sounds and if text ever lands on the LED screen there.
most un-serviced PC, pack up lint like this.
like this, doom happens like this every time not kept clean.
all do it.
http://www.pcdied.com/Filth101/html/image_9.html
SOURCE: how to unlock touchpad of hp probook 4520s laptop
Touchpad zone is on upper left of the touchpad: Turning the TouchPad on and off The TouchPad is turned on at the factory. When the TouchPad zone is active, the light is off. If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response. Thanks, Joe
To turn the TouchPad on and off, quickly double-tap the TouchPad off indicator.
I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309
SOURCE: Hi, i jst bought a new hp laptop probook 4520s
Hello silinsalim, follow these instructions for the "Touchpad," First, click on the "Start Button." "In the (right, area), select to open the Control Panel. Next in the [Hardware and Sound] category. Choose the "Mouse" Next in the "Mouse Properties" (window) click on the "Device Setting" button. Once the window open, click on the "Setting" button. It located, just below the "highlighted" (Name of the device TouchPad. Try out some of the "items listed." Tapping, Virtual Scrolling... "You must click on the "Apply, OK buttons when finished If this information helped? Return and give a "Helpful Rating," please!
'applet.'
Attention! "Manually" Install Driver; select "Update Driver"
Follow all the instructions."
Note: "Restarting the computer will configure system changes in the computer applications to prevent errors and to finalize the (Installing / Uninstalling) of programs, and or (Enabling / Disabling) of Hardware."
Thanks, paul7of9
SOURCE: hp probook 4520s numeric keypad not working even
Hello susan, if the numlock key doesnt work.
id recommend for you to do a restore.
just type in restore on the seach bar after you press the start button on the lower left habd side of your screen.
this lets you go back to the previous setting when it last worked.
Send us a feedback if it works.
SOURCE: how to unlock touchpad of hp probook 4520s
when you open a touchpad setting application you have to enable(check) radio buttons.
SOURCE: my hp probook 4520s mouse
Hello,
There is a touchpad lock on this laptop. When the lock is activated, you should see a yellow/orange light on the touchpad. Simply tap twice where the light is and the touchpad will be unlocked.
Hope it helps.
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