After replacing fan, laptop won't boot. How to get the replacement BIOS?

[artsweiner]

After replacing the cooling fan, 

It booted up with the screen displayed.  I tried opening a couple of files. 
Got some error message, couldn't locate, etc. Then it shut down.  It won't restart.  
The power button light flashes along with the caps key and number lock referenced in
HP's support doc.  HP's solution is to replace the BIOS, but there are no downloads available for this laptop.  What tro do?

UPDATE:  Problem fixed.  Resettng the memory resolved the failure to boot up.   Now the problem is that some programs aren't functioning and photos don't open with "invalid value for registry" error message.  Hope a Widows reinstall will resolve these issues.

[CF4]

Hi

Could you please expand on the

MAKE, MODEL, OS and SKU?

WinKey + R and type msinfo32 then look at line 9 for the SKU.

A re-install can wipe data so backup as much as you can first.

This First part only works when a valid Recovery Partition is enabled.
If it displays an error message then move onto the Second Part:-
OR if you have data you wish to try and save using the XCOPY command.
Then create your own Repair/Recovery/Rebuild/Re-install media or buy a set from HP.

Turn off the computer.
Disconnect all connected devices and cables, Media Drives, USB drives, printers, & faxes.
Remove media from internal drives, and remove any recently added internal hardware.
Do not disconnect the monitor, keyboard, mouse, or power cord.

Turn on the computer and repeatedly press the F11 key, about once every second,
until the Choose an option screen is displayed, and then continue.

On the Choose an Option screen, click Troubleshoot, and work your way through the screens.

Second Part:-
This may require another PC. Find and Download your .iso from…
(You will need a NON_OEM key for W7);
W8.x and W10 should activate automagically from their embedded licence key.
https://www.microsoft.com/en-us/software-download/windows7
https://www.microsoft.com/en-us/software-download/windows8
https://www.microsoft.com/en-us/software-download/windows10

For when it’s a NON MS OS ( iOS / Linux ) creating the install media.
www.microsoft.com/en-us/software-download/windows10ISO

A 3rd party site is (Courtesy of @CherylG)...
http://getintopc.com/softwares/operating-systems/windows-7-home-premium-free-download-iso-32-bit-64-...

Expand/Extract/Burn the iso Image onto a DVD/USB as needed.
Microsoft’s Creator Tool will make the required DVD or USB.

Even though it has NO actual HP software/drivers included, you may be able to
XCOPY the C:\Users\* area onto a ‘large’ USB stick, via the Command Prompt.

You’ll need to try various drive letters; D:..-..Z: until it’s matched - could be G; mine’s S:

C:\>XCOPY C:\Users\* S:\ /e /i /h (then files like those 3 listed below get copied over)

C:\Users\desktop.ini
C:\Users\All Users\agent.1509128044.bdinstall.bin
C:\Users\All Users\HP Deskjet 2540 series\Help\flash\zoom.swf

Then you can try System Recovery Options / Advanced Options shown in the screenshots.

NB:- W7 Try running a Startup Repair more than once for a full fix.
NB: - W10 Begin with the Automatic Repair, then Startup Settings etc.

From either the C:\ or the X:\ prompt try the following

cd boot
bootrec /FixMBR
bootrec /FixBoot
bootrec /RebuildBCD

If the above FAILS then please try:-
http://www.thewindowsclub.com/repair-master-boot-record-mbr-windows
http://www.thewindowsclub.com/install-windows-7-from-usb
http://www.thewindowsclub.com/install-windows-10-from-usb

[artsweiner]

Thanks for such detailed instructions.  As it turned out, I guessed that failing to properly reinstall the memory created the problem.  All fixed with resetting the memory and a successful reinstall of Windows with files backed up.  Thanks again.

[CF4]

Prego.