I have an Omni Book 500 That wont let me change the bios is there someway to get around that ?

Check with HP to see if they have a solution, but without password, it may be impossible.

https://support.hp.com/us-en/document/c03059228

Go into the BIOS and make sure that USB is selected for boot options.

a desk top PC?, what is it? use full names of things.
you never said what the screed did, is it black all the time.
if yes, does BIOS screens work?
F11 key, (the magic key) on older HP its F10 older still (none)
what year PC is this, full model number , type it out full off the service tag.... i cant guess omni this is. there are 29 models and subs.

The newer HP systems, all have this F11 key
this is the magic key as you boot, you hit it fast (tap tap tap)
and it goes in to recover mode. My 2006 Laptop does.
the HDD if still working and corrupted,
will run the virtual installer disk, via a hidden partition on said HDD>
if that is confusing, try to imagine 3 ways to install.

F11
HP recover disk called the media kit. (uses on replace HDD )
MS disks, wrong, and will fail., ask how if must,,,,


if you and gone to HP forum or the support page
you'd have seen there is may different omin100s, lots
sorry cant guess yours...


you asked for help and cant muster up the service tag words
full model at least.

if you had id have pointed to the page that tells you what to do step by step, at HP.com
even what to do when it dont boot,all ways from SUNDAY.
the oldest one supported is 2010 year.
here is 100-5000 omni ,series, many in series.

https://support.hp.com/us-en/product/hp-omni-100-5000-desktop-pc-series/4273707/troubleshooting


and last
no start actual pages... i see it covers most ways, (weak on hardware causes, there are vast cause under that topic, ask)

https://support.hp.com/us-en/product/hp-omni-100-5000-desktop-pc-series/4273707/document/c01884928

Check to see if any media is in you CD DRIVE, or any other drive because if BIOS is booting from the CD or other media first, it never gets to your hard drive thus never boots windows. If clear, Press F9 and enter into your BIOS setup. You will have to make sure your boot sequence/order is in order to boot first from the hard drive. If all is in order try F8 hitting it repeatedly until safe mode options appear. If this doesn't work post a reply and we'll go from there.

disable usb booting in bios, set hard drive and cd ahead of everything in boot order

When you first turn your computer on, during the first few seconds the screen should give you information about what is happening, AND it should tell you to press the delete key in order to get to the bios settings. Do that (press the key several times to make sure you get there). Once you get to the bios settings find the ones that control the boot disc (usually you will see 1st boot and 2nd boot, and each will allow several possibilities, including floppy boot, if you have one, as well as cd or dvd boot, etc.) Make sure your hard disk is selected as your first boot choice, then save the selection and reboot.
I think this will work for you.

I don't recommend downgrading your laptop from Vista to XP but...

According to manual, pressing F2 during boot sequence takes you to BIOS and then you can change
the order of the boot sequence in the BIOS. From the manual:

"...set passwords, change the booting order, and add new peripheral devices to the machine."

If you can't find boot sequence in BIOS setup, talk to a support rep online:

http://ca.lgservice.com/index_b2c.jsp

You may need to use a different server if not in CA.

so to bios setup and go to boot, and change the boot order of your drives, dvd/cd rom, and hard drive changer the boot order to hard drive and escape enter and save exit and reboot
that should resolve the problem

hello, open the case unplug the comuter, take out the litium battery,looks like a coin, near that a three pin header, with a jumper on move it to the other 2 pins..count to twenty-put it back the way it was-put the battery back in-plug it in-and you should be able to change the boot order. you may have to set other bios options. this is the way to reset the passwords, this resets it to default. hope this helps! goodluck!

That message is when you have your computer set to network boot. You can disable it in the bios or change the boot order to put network after hard drive. Press probably Delete when booting to get into your bios and look for Boot Order.