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My computer powers up but I get a blank sceen

December 2, 2010 at 07:43:06
Specs: Windows xp
A lot of virus alerts appeared on to my screen and proceed to download on to my computer. I already have anti virus programs on it, so I try and cancel. However every time I do, it keep asking me "am I sure and that my computer will be unprotected." After 5 min. of trying to cancel, I then try and restore my computer to a previous day. It dose its thing and restarts. After staring back up it loads its dell bar with the F2 and F12 ops. Then the screen goes blank and stays that way. If anyone can help to bring my computer out of it’s a coma; that would greatly appreciated.

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December 2, 2010 at 08:01:14
Sounds like you had what is called a rogue antivirus. They are very common nowadays and are a pain sometimes to remove. When you turn your computer on, does it do a POST. For example, do you see some black/white letters on the screen showing your processor speed, memory amount, and some other information?

If it does POST, the issue sounds like your operating system may have a corrupt MBR(master boot record). What version of Windows are you running? If you have a operating system CD you may try putting it in, booting off of the CD, and running the recovery console. From there you can try running the "fixmbr" command. This will hopefully fix the issue with your MBR and allow your computer to boot.

Please post back and let me know if you need further help.

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December 2, 2010 at 08:20:38
It sounds like you have crap installed that was made by one of the makers of what is generically called "Rogue" anti-malware software. Most major anti-malware software either doesn't detect it, or does detect it but can't get rid of all of it's FAKED symptoms. Fortunately, usually Malwarebytes can get rid of it properly.

You must have video in Windows to fix your problems.

Restore your computer back to the restore point you had when you got this crap on your computer.
See the last part of this post if you don't know how to do that.

Download the free version of Malwarebytes from the web.
Install it on your computer.

If you can't download it in the present state your computer is in, download it on another computer, copy it to a flash drive, plug the flash drive in a port built into your computer, copy the installation file to the desktop screen.

If the crap won't allow you to run the installation download, RIGHT click on the download and Rename the file extension from .exe to .bat, then double click on the file.
(Your View settings in Control Panel - Folder Options must be set to show extensions of known file types in order for you to be able to see the .exe extension and re-name it to .bat. If you don't see .exe and if you can't change the View settings in Control Panel, rename the download on another computer, then copy the *.bat file to your main desktop screen.)
You may need to do the same thing in order to run the installed program.

Windows must have access to the internet while Malwarebytes is being installed in order for it to update itself while installing.
If you can boot into Safe mode with Networking before installing Malwarebytes by running the download, do that. See the last part of this post if you don't know how to do that.
If you can't, then it will probably update itself anyway, but the Full scan you do later will probably take longer to run when you're not in Safe mode with Networking.
(Safe mode without "with networking" beside it will NOT allow Malwarebytes to update itself.)

After it has been installed, then you will see an icon on your desktop screen for Malwarebytes. Double click on it, choose to run a Full scan.
It will take awhile to scan your computer, then you will see a list of what it found.
Have it remove everything that it found.
Reboot your computer normally.
Your FAKED symptoms will probably all be gone.

How to boot into Safe mode or Safe mode with Networking.

Remove any bootable CD or DVD you have in a drive.
Press F8 repeatedly while booting, DO NOT hold down the key, and when the Windows boot choices menu appears, choose
Safe mode
Safe mode with networking

NOTE that some brand name computers also have the option of using the F8 key while booting to access something else - e.g. a boot device choices menu. If you see that, press Esc or some other key (may be shown on the screen) to exit that then immediately repeatedly press F8 until you get the Windows boot choices on the screen.

To most easily use System Restore to load the newest restore point and probably have video, when you have chosen Safe mode or Safe mode with networking, when you see the message "Do you want to use Safe mode" or similar, answer NO, then System Restore will load.
Or , you can answer Yes, and go to All Programs - Accessories - System Tools - System Restore.

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December 2, 2010 at 08:37:51
No, it do not show a POST. It starts up flash dell loading bar then goes to the black screen. I am running windows XP. I put the recovery CD in but it will not reconize the cd.

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December 2, 2010 at 09:55:07
You probably DO NOT NEED to use the Recovery disk(s) to re-load Windows from scratch to fix this problem of crap installed by a maker of "Rogue" anti-malware software.
You CAN do that, but if you DO, you will lose ALL of your personal data that you have added to the Windows partition, which is usually C, unless you boot the computer with something such as a Linux boot CD, and copy all the data you don't want to lose to elsewhere, BEFORE you use the Recovery CD(s). AND, you will probably need to do a lot more than just load Windows in order to get your Windows to be in at least it's updated state, especially if your Recovery disk(s) do/does not have Windows with SP3 updates included.

"No, it do not show a POST. It starts up flash dell loading bar then goes to the black screen."

POST = Power On Self Test
Your computer HAS completed the POST successfuly, otherwise you would NOT see " dell loading bar then goes to the black screen."

Your problem is Windows is not loading properly - your computer mboard is booting fine and it's finding the hard drive is bootable (has an operating system installed on it). .

Crap installed by a maker of "Rogue" anti-malware software WILL NOT cause you to have no video in Windows, but you loading a previous System Restore restore point, if that's what you did, without getting rid of it MIGHT cause you to have no video in Windows itself, or you may have another problem not related to that at all.

Obviously you are getting video while booting BEFORE Windows is supposed to load.

"I put the recovery CD in but it will not reconize the cd."

Most brand name computers that had XP on them originally that come with (a) Recovery disk(s) have an "XP Re-installation CD" or similar. That CD is bootable and can be used the say way as a regular Microsoft XP CD. (You may also have a "Drivers and Applications" disk or similar - it's probably not bootable.)

The computer's bios will not boot from a bootable optical disk if the Boot Order or similar settings in the computer's bios Setup does not have CD-rom or similar listed before (above) any hard drive (CD-rom or similar does not necessarily have to be listed first, but it must be listed before any hard drive).

If the Boot Order or similar settings in the bios have CD-rom or similar listed correctly, you will see "Press any key to boot from CD" or similar early in the boot while booting - you press the stated key while that is displayed on the screen in order to boot from the bootable CD.
If you don't see that, you must either...
- go into the bios and correct the Boot Order or similar settings
- or - on many brand name computers, you will see a text message while booting "Press xx to select a boot device" or similar - if you see that, press the stated key while the text message is still on the screen, and choose to boot from CD-rom drive or similar .

Once you get the XP Re-installation disk or similar to be recognized and start loading it's files....

If your computer has a SATA hard drive, the files the XP CD loads will NOT find any SATA drives, unless the bios Setup has the SATA drive controller in an IDE compatible mode of some sort, because XP has no built in SATA drive controller drivers.

After the initial files have been loaded from the XP CD, you will see a screen of text that will ask you if you want to Repair Windows.
Press R to answer yes - that takes you to the black screen interface called the Recovery Console.

The first thing done there is it looks for existing Windows installations.

If it doesn't find any, you probably have a SATA hard drive and the bios setup has the SATA controller in SATA (a.k.a. AHCI) mode.
(or, your hard drive is failing and the data on it is badly corrupted).

This is by far the easiest way to fix that problem - if you have a laptop, or a desktop computer that has no legacy (internal) floppy drive, this is the best choice...........
In that case, type: exit (and press Enter) to close the Recovery Console and re-boot the computer, DO NOT press the key to boot from the XP CD, and go into your bios and change the SATA controller mode to an IDE compatible setting, Save settings, then boot from the XP CD again.

If the Recovery Console finds (an) existing XP installation(s), it will list it(them).

Usually it finds only one -

type the number before it, press Enter

You will then see ........ Administrator Password:
Usually there is no password - just press Enter.

type: fixmbr , press Enter.
Answer yes to any question.

type: fixboot , press Enter
Answer yes to any question.

type: chkdsk /r c: (press Enter)
(a space between chkdsk and /r, and between /r and c:)

That will take a long while to finish.

When it's finished

type: exit , press Enter
to close the Recovery Console and reboot the computer.

DO NOT choose to boot from the XP CD - let the computer try to load Windows the normal way.

If Windows still won't load when you boot normally, there are more things you could try, the first one being....

Check your hard drive with the manufacturer's diagnostics.
See the latter part of response 1 in this:

If you don't have a floppy drive, you can get a CD image diagnostic utility from most hard drive manufacturer's web sites, but obviously you would need to make a burned CD, preferably a CD-R for best compatibility, on another computer if you need to.

Seagate's Seatools will test any brand of hard drive.
Do the long test.

If the hard drive itself tests okay, any data problems found can be fixed, one way or another.

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