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Computer Viruses

Computer viruses are harmful pieces of software which can reproduce themselves and automatically spread to other computers and networks. Questions about computer virus techniques and specific computer viruses belong here.

5,673 Questions

How can you use the registry editor when your PC is infected by virus?

First of all you have to make your system free from virus; that can be done by using any anti virus [I use Kaspersky]. Or if your virus don't allows you to install any anti virus then use any "Process Manager" which will show you the Virus files [virus.exe or virus.com etc.] running, you can terminate them from there; and now you are free to run your anti virus to delete all your system virus. Even I use my this trick to get rid from my all favorite virus. [I love Virus !] Bye a ! ---- You can do one more thing and that is

Enabling Registry Editor if it is disabled by any Virus [ or anything ]

Open the Start Menu | Run & paste

REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f

And Press OK.

Why were viruses made?

Viruses weren't so much made as evolved from complex molecules, they are probably the simplest form of life. (in some cases they aren't even classified as alive)

Unless you're referring to computer virii, in which case they were originally written for fun, just do do funny stuff to computers, like pop up messages on the screen on April fools day, for example. Later on criminals and other wrong-doers decided that viruses were the perfect way to disrupt computer users, and in some cases exploit money from people.

How do you pop up a wheelie in a bike?

Pretty much the same way as on any other bike. Go slow, lean back, push hard on the pedals while giving the handlebar a good yank.

Is there a way you can end multiple processes at once in the windows task manager?

Ok ive had this problem in the past and there is a solution. While you cannot use windows task manager to do this there is an excellent piece of software to allow you to do this. Its called 'enditall' and is free or can be downloaded from me if u contact me. If brings up all system processes and allows you to 'close' or 'kill' all background unnecssary processes.

What is ultima drvtools?

It is related to your CD rom drive software

No, it is actually a driver monitoring utility for use with Plextor PX-HDTV500U USB TV Receiver. It runs whenever the device is connected. Disabling this .exe it at windows startup or in Task Manager does not disable detection of the device, so it is unclear why it is needed. Perhaps it is required to use the device itself, which receives HDTV signals via an analog antenna or an S-video input on a WinXP or earlier machine. If disabled, it will run again immediately upon connection of the USB device. It is installed when the Plextor PX-HDTV500U ATSC DTV Driver is installed, and is installed along with ArctecMedia Digital TV Player/Scheduler.

What is the Irish Question of the 19th century and who was most affected by it?

The Irish question relates to Britains problem of how to rule Ireland. It was expensive to police and it was believed that a level of Home rule would quiten things down. However Ulster Unionists were opposed to anything they felt would be a stepping stone towards an Irish republic. The obvious answer was partition of the country between north and south but Irish nationalists were vehemently opposed to this. In the end the country was partitioned but instead of the whole 8 counties of Northern Ireland 6 were separated. This was done to ensure a unionist monopoly of power over the northern state. The rest of the country gained dominion status and went on to form a republic.

How do you make book pop ups?

I don't have first-hand knowledge of these but I am very susicpious.1. If they ask for a credit card number decline they can charge for services against your card2. If they ask for a phone number decline they can charge for services against your phone number3. If they are elusive about their answers to your questions decline.4. If you have to download software, it may contain a trojan or keylogger to get your credit card and password information.AH, heck! Decline anyway.

System restore will not allow you to restore to an earlier point?

If any of these instructions make you uncomfortable, or you don't know how to change the settings mentioned, stop right here and ask an experienced user to continue for you.

First thing: This is for XP, not Vista. The System Restore Service may be disabled: Click Start--->Run and type: services.msc

Scroll down to "System Restore Service"; it should state: "Started" under 'status', and "Automatic" under 'startup type'.

Second thing: is that you need to ensure you have ample HD space. You should have at least 5GB of available space if you have multiple (physical or virtual) drives. If you have only one HD or partition, you should still have room for defragging functions, restore, etc. So, 5GB it is. If you have that amount of space available, continue to the next phase.

You may have System Restore disabled. To enable it, right-click the "Start" button and left-click on "Explore". Once the Windows Explorer opens, right-click on "My Computer" and left-click on "Properties". Next, left-click the "System Restore" tab.

Uncheck the box that states, "Turn off system restore on all drives". Left-click the "Apply" button on the lower right. Left-click "OK". Reboot.

Does it work now?

If not, take PC to repair shop. Safest bet.

I've been warned that I should always close out of Safari before I shut down computer. Is the browser still open and active if I shut down computer but not the browser first?

No. If your computer is off it can't run any software. It doesn't really matter if you shut down first or close safari first but some browsers will pop up a message saying the browser didn't close normally last time if you shut down without closing the browser first.

What is near far and huge pointers How many bytes are occupied by them?

Near, far, and huge pointers are different types of pointers used to reconcile the different addressing models of the Intel 8086/8088 class processors, running in a 16-bit operating system such as Windows 3.x, as well as any of the newer incarnations running in real mode or virtual 8086 mode.

A near pointer can address something within one 64Kb memory segment, containing only an offset, and it takes two bytes. The segment is implied by context, and is usually the data segment, selected for the addressing model.

A far pointer can address anything in the 1Mb memory1, containing both a segment and an offset, and it takes four bytes.

A huge pointer is a normalised far pointer, which means its offset part is always between 00H and 0FH.

In 32-bit mode a pointer can address anything in 4Gb memory, containing a flat 32-bit offset, and it takes four bytes. (In this mode segments have no significance.) It only works, however, when there is support for it, such as the WIN32 extension of Windows 3.x.

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1In the 80286 or higher, running in protected mode, in OS/2, the segment portion of the pointer is actually a descriptor selector, so 1Mb addressibility depends on the operating system environment.
far huge near pointer is an oxymoron. far points to memory outside of the normal address space. near points to memory within the normal address space, is the default, and usually is not needed. I've never seen huge before. What is the target architecture?
Near, far, and huge pointers are a construct (usually) in the Win16 environment running on an 8086/8088 or later in real mode, such as Visual C/C++ 1.52. In this environment, near pointers are 16 bits, and far and huge pointers are 32 bits.

How do you remove Identity-H file?

the first step in changing ownership and then change permission

changing ownership

right-click any file or folder, select Properties, and go to Security tab. Now click the Advanced button. Next, you need to go to Owner tab and hit the Edit button. Then in the new dialog window choose the new owner and then click OK.

change permission

To give complete permission to yourself, right-click the file or folder and select Properties. Now go to Security tab, and hit the Edit button.Here select your username(account) and check the Full Control checkbox. When done, hit OK. Note that when you will check the Full Control checkbox, all others will be automatically checked too.

How could you delete the sound program from your computer?

< >Yes, sound cards and onboard sound all have "drivers" that are needed for them to work. If you delete these drivers it won't work. yes, but... While the drivers are required, pretty much every sound card I've ever encountered has you install a bunch of other crap that you'll never use and does nothing but slow down your system. Things like mixers, editors, even its own volume control you can uninstall through Add/Remove Programs in the Control Panel.

Also, the wording of your question is a bit weird and leads me to believe you might be asking how to turn the Windows sounds off. Go to the Control Panel, click on Sounds, then in the window that opens click on the tab labeled Sounds. At the top is a pull-down menu for the sound schemes, select No Sounds, then OK at the bottom of the window.

How to solve Copy.exe error?

IF you double click on your drives and you get a copy.exe error then

here how you solve it(although you could just right click and open or

explore...its a big pain),

in START menu open RUN and type your drive name and autorun.inf

eg:C:\autorun.inf...a notepad document opens, here delete all the contents

of this file, now first save this file on your desktop(its a read only file and cannot be directly saved on to your disks after u make changes).

now copy this file, open one of your drives and try pasting it there, windows gives the file replacement warning...tell it to continue pasting.

Now paste this file in all your other drives.

once you are done restart your PC and you are ready to ROCK.

How do you get rid of Java-ByteVerify?

== == == == == == This is not a virus, but rather a method to exploit a security vulnerability in the Microsoft Virtual Machine. First, update to the latest version of Java Runtime Environment (JRE) - 6 Update 3 (as of June 2008. # Click on Start> Control Panel and double click on Add/Remove Programs. Locate Java 2 Runtime Environment, SE v1.4.2and click on Change/Remove to uninstall it. # visit the SUN Java's website. http://java.sun.com/javase/downloads/index.jsp

# Scroll down to Java Runtime Environment (JRE) 6 Update 3. Click on Download. # Select Accept License Agreement. The page will refresh. # Click on Windows Offline Installation, Multi-language and save it to a convenient location. # Run this installation to update your Java. 2) Run a windows update

3) Do a complete scan with a fully updated Anti virus Program.

Why does virus appears in PC even after formatting it?

If a virus persists on a PC even after formatting it is likely that the virus has been inserted into the boot sector of the hard drive - which is not rewritten when you re-format it.

Assuming you are running a Microsoft OS, to fix it, boot using the install CD for the OS and run the first Repair option which will load the Recovery Console from a ramdisk (and doesn't use the hard drive for booting). This requires that your BIOS supports booting from the CD drive. Then run the 'fixboot' command. This is supposed to overwrite the boot sector. You may have to specify the drive letter of which partition to fix.

What types of computers are there?

Well, let's see,There are several Operating Systems, the most popular being Windows, (refered to as PC's) Mac OS, Linux and Unix. In terms of types, there are small, or not so small, personal computers that are not all that powerful. Conversely, there are small to large computers that will do darned near anything known to man. You might have seen on TV, the "super computers" that some government agencys use, and you've probably seen or heard of "mainFrame" computers. These are generaly large (like room size) very powerful computers. Interestingly, the newer Mac G5's and Intel Duo Core's are considered to be "supercomputers" because of the number of procesess they can accomplish in a short time ... a very short time!

FriPilot

How do you find out from the 'blue screen of death' how to resolve the issue of permanent Windows crashing after Service Pack 2?

One thing you MUST do when you have a BSOD, GET THE ERROR MESSAGE Write down the error message and then find a system to use and go to Microsoft's knowledge base and put that exact error in the search string line and it should give you some kind of indication what is happening. You may have to play around with the error string but just put it in on the website and see what solutions come back.

Sometimes after you reboot a message will pop up saying "The system has recovered from a serious error" and a option will let you send data to microsoft". Press "send data" and in a couple minutes a web browser window will pop up telling you the problem.

How does repair people get rid of computer viruses and spy ware if your computer don't start up?

They either use a rescue disk

or they insert the hard disk into another computer as a secondary drive.