I left my computer on for a while, when i returned to it, the screen was black and nothing was seen even when i moved the mouse. So i switched off the power to the computer and let it rest for a while.
My computer is a acer aspire X3600
Later, when i turned it on again, the computer started up and then the screen remained at this:
verifying DMI pool data.......
boot from AHCI CD-ROM:
diskboot failure, insert system disk and press enter.
what can i do to get my computer to start up again, URGENT! DEPSERATELY NEED HELP!
You need to select ur harddisk as the first bootable device., that option is in BIOS settings. When switch on the system before loading OS press F2 to get the BIOS settings and select boot option in the menu and select your harddisk as the first bootable device. Restart the system now. If the same error is displayed your harddisk data cable may be failed or your harddisk may be corrupted...
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Boot the computer and watch for the black boot up screen. It will only show for a few seconds but somewhere through the boot process, a line message in white text will say...either 'to enter the bios press F2' or, 'to enter Setup, press F2'.
The F buttons are on the top row of your keyboard.
So press F2 at the appropriate time and you will find yourself in the Setup area. The graphics will look cruder than usual - that is normal.
Your mouse won't work to allow you to move you around in there, so use the keyboard arrow keys to move the cursor and 'return' to open other options and follow the instructions to move left, right etc.
Look for a command 'Restore Factory Defaults and Exit?' toggle to it to highlight and Enter. Then enter a 'Y' for yes, Enter again and the PC should re-boot and be as good as it was on day one.
The floppy disk or drive is damaged, or if your trying to boot your computer and you have a floppy in the drive that is not bootable. It will try and boot from floppy first then cd then hard drive usually but floppy's are stupid and only return an error and then stops. Remove the floppy disk and boot
It depends on what kinda error it has..If it is a boot failure is best to see what is saying on screen and select the correct configuration if it is the case..or reinstall the operation system ..If it does not start to show the devices and just has a black screen the issue is physical ..and you have to see whats wrong ..If it is the cpu ..the fan will start but nothing on screen and no action at all not even a beep ..if it is the ram memory it will beep ..and restart in loop ..or freeze with devices on screen but not intelligible ..Ifg it is a hard disk failure will boot up until loading windows but never show windows screen ..and report a issued hard disk ..(in this case may be the bios settings or a unplugged cable on hard disk ) Also when the video card is to blame it may beep in sequence or long ..and showing nothing on screen ..and in this case try to on board video card if it has one ..but after you remove the other one .. If it is just a classic case of windows failure..and it tries to load it but in error after ..cause it is missing a file or incorrect boot sequence ..just reinstall the operation system or use the recovery partition or disk to do that .. Let me know more and I will advice after that in case..!
You have a rootkit virus, the only answer is reformat the drive and start fresh, sorry. After a fresh install is done immediately install service(can be downloaded free from microsoft.com) pack 3, because sp2 is vulnerable to a host of trouble.
Re install Operating System (Vista) place the disc Vista DVD in cd/dvd player. Restart your computer and press F12 when you see the Dell logo. pick the option on board cd/dvd player. press enter and start tapping on the space bar to boot to cd. follow the steps in this sites to do a reinstall of Vista.( oh yeah you will lose all your data and files) http://vistahomepremium.windowsreinstall.com/reinstallvista/index.htm
Did you try " Last known good configuration at start up. If after boot you press the F8 key where you said you went into safe mode, did you try to load the good known config. It sounds like you have a corrupted registry.
you may try
1) if you reinstall windows xp but it can't boot from xp disk, you may set the cdrom to piority at bios setup screen, still no boot, you need check your cdrom works status
2) if you reinstall windows xp but display no any hard disk appear that means the HD damaged, you need replace a new HD then do again
3) update some devices driver maybe needed, check from control panel--system--device manager, any triangle yellow mark, you can search from website acording the device model name, download and update them.
This problem sounds like a HDD failure. If you have access to another computer you could try and slave her drive on that computer and run a check disk on her drive. Whne you slave the drive make sure the jumpers are set you will see a diagram of the setting on the front of the drive on the sticker. To run a check disk go to:- Click on run ---> cmd ----> chkdsk if there is a problem you could try chkdsk/f Hope this helps.