My PC HP doesn't want to boot to windows

[Maddy02]

Every time I turn on my computer it goes to boot device not found. I ran the tests and it says that it can't find the hard drive and that I have to check the connections. I did that and it's still not working...... Please help, it's out of warranty already!! I can't even figure out what windows it is.

[BeemerBiker]

Did this happen all of a sudden like after a power failure, electrical storm etc? 

After turning the computer off by using the switch/power cord and not clicking on "shutdown" first?

Did problem start showing up recently such as taking too long to load a file, mouse showing busy icon (spinning circle" when accessing the hard drive?  For example:  Was it taking a long time to load WORD or open a file with notepad?

You make a bios change recently?

Any blinking lights indicating the hard drive is working?  If you open the case and touch the drive does it vibrate when the power is turned on?   Your hard drive activity LED should blink and you should feel vibrations at a minimum.  

If you boot a repair CD or DVD does it say something like "no disk found".  If you attempt a windows install does it give a warning the existing disk has partitions?

HTH

[Maddy02]

It happened all of a sudden, I was cleaning around the computer area. My boyfriend went to the computer since it's always on and he tried moving the mouse since the screen was idle, he told me nothing is happening so I told me that maybe the computer was off, so I told him to turn it on, I was not close to the computer. He pressed the power button and it actually turned off meaning it was on. When he turned it back on that's when the the blue box came out

[BeemerBiker]

My guess is it was on standby and moving the mouse caused it to start waking up but it got shut down midway waking up.  Probably a 1 in a 1000 chance of damage happening but you are the unfortunately 1 in a 1000.

I had a computer under a desk and the power switch happened to match exactly where my kneecap was.  I duct-taped a metal bracket over the switch after a dozen accidental turnoffs but never had the system die.,

You need to get a Window 10 or any "DVD install" as they all come with repair tool. You boot it up but run the repair.  If you do not have a DVD then create a USB boot flash drive using any windows 10 system and an 8gb flash.

If you have trouble booting up come back and tell us.

Walk through here

https://www.windowscentral.com/how-use-startup-repair-fix-boot-problems-windows-10