Iam at black screen that said F1 to resume i pressed and sendme to bios utility how can i go back to regular screen windows

To start the Setup Utility program, do the following:
1.
If your computer is already on when you start this procedure, turn off the
computer.
2.
Repeatedly press and release the F1 key when turning on the computer. When
you hear multiple beeps or see a logo screen, release the F1 key.
Note:
If a Power-On Password or an Administrator Password has been set, the
Setup Utility program menu is not displayed until you type the correct
password.

You don't need to access the BIOS to format your laptop. Put the Windows disk in the optical drive and then select format when you reach the correct prompt.

press del to enter setup.then choose default bios setup. then save and exit.pc will restart.

try to turn off the pc, then remove the cables and battery on it. Then, press and hold the power button for 8 secs. Reinsert the battery and cables back and turn it on. If it still stuck at the BIOS screen and would not move on to windows, you have to contact IBM for repair of your motherboard..

When the first screen displays, immediately press the F10 key if your computer was built in 2006 or later (came with Vista or Windows 7). Press the F1 key if your computer was built before 2006 (XP or earlier). Press the key once every second until a BIOS Setup utility screen opens.

Hello,

its showing operating system not found, because the system cannot detect your hard disk.

Open your system, remove and fix back the hard disk, then try again.

Take care.

This is what the Compaq site had to say about the BIOS utility for your system (Source: Compaq): • • • •You may have difficulty accessing the BIOS Setup utility screen, because you must press a specific key(usually F1) very quickly before the Windows screen appears. If you do not enter the BIOS Setup screen on your first try, repeat the following steps until you are successful.

To open the BIOS Setup screen:
1. Turn off the PC and wait about 5 seconds.
2. Turn on the PC.
3. When the first screen appears, press the F1 key on the keyboard. (You can press the key more than once.) The BIOS Setup Utility Main menu appears.
NOTE: On certain Compaq Presario PCs (prior to 2002) press the F10 key at the logo screen to enter setup.
4. Use the keyboard to navigate through the menus.
You may need to remove the battery and then back in.

When the IBM Setup Utility program prompt is displayed, quickly press F1.
The prompt is displayed for only a short time.
if you dont see the prompt, tap F1 repeatedly as the computer starts. If it says "starting windows" you've let it go too far and will have to restart again and repeat the process to get into the bios
REGARDS..

When you go into you setup screen,choose the setting that you want,then tell it to save the settings. If irt is loosing the setting then likely  the cmos battery is bad and needs to be replaced.

Try changing the CMOS battery (leave the battery out for 5mins then replace with new 1) if that does not work flash the BIOS

Let me know how you get on...
Matt