How can i boot up from usb when my bios doesnt have usb option in boot menu

You may need to enable USB boot function in the BIOS or change the boot order. In some cases the USB boot function has to be forced from boot priority in the BIOS.

Or goto the boot menu when you first turn the PC on there should be an option to use USB Boot assuming the option is enabled in the BIOS already.

you may need to enable USB boot, this will normally be under advanced options.

I’m happy to help further over the phone at https://www.6ya.com/expert/michael_2ebcd3cbc4810dbf

USB thumb drives give you the ability to mobilize information, but they also have the power to act as a boot disk for both Windows and Mac computers. If you have a bootable thumb drive that you want to boot your computer from, you can easily set it up in the BIOS menu of your Windows computer or through the boot menu in Mac's OSX.

Plug your USB thumb drive into the computer. Boot the computer and follow the on-screen prompt to enter the BIOS (Basic Input/Output System) menu. You should "Press a certain key Usually the DEL or the F2 key to enter BIOS setup" or something similar when you turn your computer on. Follow the directions to enter the BIOS menu. Scroll over to the "Boot" menu in the BIOS screen. Change the primary boot device to USB port or something similar depending on your BIOS menu. Restart the computer with the USB thumb drive in the USB port. b> Mac b> Plug your USB drive into your Mac's USB port. Turn on the computer while holding down the "Option" button on your keyboard. Wait for the boot menu to appear with all of your bootable devices shown. Use the mouse to select your USB thumb drive from the boot menu. Wait for the computer to boot using your thumb drive. Hope this helps.

USB thumb drives give you the ability to mobilize information, but they also have the power to act as a boot disk for both Windows and Mac computers. If you have a bootable thumb drive that you want to boot your computer from, you can easily set it up in the BIOS menu of your Windows computer or through the boot menu in Mac's OSX.

Plug your USB thumb drive into the computer. Boot the computer and follow the on-screen prompt to enter the BIOS (Basic Input/Output System) menu. You should "Press a certain key Usually the DEL or the F2 key to enter BIOS setup" or something similar when you turn your computer on. Follow the directions to enter the BIOS menu. Scroll over to the "Boot" menu in the BIOS screen. Change the primary boot device to USB port or something similar depending on your BIOS menu. Restart the computer with the USB thumb drive in the USB port. b> Mac b> Plug your USB drive into your Mac's USB port. Turn on the computer while holding down the "Option" button on your keyboard. Wait for the boot menu to appear with all of your bootable devices shown. Use the mouse to select your USB thumb drive from the boot menu. Wait for the computer to boot using your thumb drive. Hope this helps.

rather disconnecting the dvd you could just uninstall your dvd drive then reinstall it after
Click start control panel administration tools computer management device manager scroll down cd-dvd rom drives right click select uninstall
or

During the boot process you will see on the screen to press a certain key to enter setup usually the Delete or the F2 key

Press and hold that key during the boot up process to enter BIOS the using arrow key scroll down to advanced bios features press enter change your first boot device to usb,press escape then press f10 to save to cmos to restart
or

http://www.bootdisk.com/art/penboot.jpg

hope this helps

Some BIOS will only give you the option for USB if there is a USB detected upon boot. List all your boot options it could also be listed as something like Legacy USB, USB FDD, USB HDD

Insert your USB jump drive into a USB port on the computer containing the bootable program. Copy the information to your jump drive, then insert the drive into a USB port on the computer you wish to boot the program from.

Power on the computer. When the computer begins displaying its startup information, hit the key indicated on screen to enter the computer's BIOS (the "F1" or "Delete" keys are commonly used to access the BIOS).

Browse through the menu options in the BIOS to locate the computer's startup and booting options to locate the "CMOS" menu, which is where you'll have the option to set which devices will boot at startup.

Browse though the list of bootable option---they'll be ordered as "First Boot Device," "Second Boot Device" and so on. Set the USB jump drive as the first bootable option---your BIOS may refer to the drive as a "USB Removable Floppy Disk."

Save and exit the BIOS. When your computer restarts, your program will boot first before your operating system.

press either delete or f2 or f8 when booting... one of these should take you to the boot menu... there you can set your laptop to boot from usb... if its possible

I’m happy to assist further over the phone at https://www.6ya.com/expert/norman_d2fa496dce30c65d

Sounds like the boot order menu is what you have. Set the boot order menu to try other devices before the hard drive. (Example: CD/DVD drive, floppy; if present, USB devices, hard drive). You should have a default key for accessing the boot menu (usually f11 or f12). Hit this key and choose the USB option. Make sure the device you want to boot to is already connected before you turn on the laptop.

I assume with "boot menu" you mean the BIOS boot menu (the one you get to if you press F12 during start up, before the Windows screen appears.)

1. Go to "Enter Setup"
2. Go to "Config", click "Enter"
3. Go down to "USB", click "Enter"
4. Make sure that "USB Bios Support" is enabled.
5. (Hit "Enter" again and choose between "enabled" and "disabled")
6. Hit "Esc" twice to go back to the main page.
7. Go down to "Startup", click "Enter"
8. Choose "Boot"
9. Check if "USB CD" is in the list of boot options or excluded form booting.
10. Hit F10, confirm any changes you made (click "Enter" for 'yes') and reboot.
11. Tap or hold down F12 again and you should see the boot option menu again.

Note: I am not 100% sure if you can boot from a DVD externally.
I booted from the internal DVD drive fine with a Linux LiveCD. It is possible that the T22 BIOS does not support external booting. Check you version - the latest release from IBM is version 16ET32WW (1.12), release date 06/03/2004. You find that info here.

I would really appreciate if you could come back here and leave a comment, so I (and maybe others?) can learn form this ;-)

Good luck!