My battery came out ..cuzd my computer to crash ...is staying stuck on start up...will no load

[Tdickerson1]

Keeps getn stuck on start up...I've tried f8...f11...& F2...not helping...says contact manufacturer

[Prométhée]

Hello

[start]
This is an automatic response
in order to avoid writing the same thing each time

Some elements may therefore not apply to you 
To be able to answer you effectively, we need some information

we need the exact model of your computer, and the product number
To find it follow this
for a desktop computer

HP Desktop PCs - How Do I Find My Model Number or Product Number? | HP® Customer Support
and for a laptop
HP Notebook PCs - How Do I Find My Product Name or Number? | HP® Customer Support

Give the full name with the product number P / N

this is not a model:
HP Desktop M01-F1xxx
the requested product number must look like this
Product Number: 9EE50AA # ABA
the model corresponding to this number will therefore be
HP Desktop - M01-F1033wb

Give the full version of windows

for windows 10 type winver in the search box
if you give the best information
your problem could have a solution more quickly (depending on the difficulty, of course)
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[BeemerBiker]

The following might be helpful 

https://h30434.www3.hp.com/t5/Notebooks-Archive-Read-Only/Compaq-laptop-failed-to-boot/td-p/1164519

If you see a message "contact manufacturing" I assume something is working.  Do you see any keys / LEDs lit up on keyboard? Maybe keyboard not working so borrow and try plugging in a USB keyboard in.,

You should be able to press F10 and get into bios if keyboard works and screen shows something.

HTH