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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 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.

What arwe the most popular methods of getting rid of computer viruses?

Well their are many different kinds of viruses but most all go down by AVG- anti virus

What computers will be like?

This question is rather vague, but I'll do my best here.

The next generation of computers will likely be faster and better, as they have been getting more and more so without slowing down since their creation.

Instead of making a single processor be faster and faster (as nowadays most increases in speed are less and less noticable), computers may have two or three (or more) processors that divide the work in order to process more information at the same time, however this would require quite an overhaul in a lot of programming, so it's not something that'll just spring up.

"Cloud" programming is an idea that is having a lot of stock placed in it. It is the idea that instead of holding most of your information on your personal hardware, the companies that produce it will instead hold the vast majority of the info on their hard drives and servers and such. This will allow incredibly smaller computers to do the exact same things a large one could do, just be downloading all the processed information from the internet, rather than processing itself.

Imagine a watch-sized computer that is essentially a port to the rest of the actual computer that functions just as well!

This, of coarse, is all speculation and nothing can truly be known about the future. Did anyone in the 1900s dream about something like the Tv? Did people in the 1950s, completely comfortable with the tv, imagine something like the internet? Will people in the 2000s, completely at home with the internet, be able to think of what amazing thing will emerge for the next generation? Not a chance.

Does perfect world international slow down your computer?

computers more than 4 years old seem to have a bit of trouble running the game, but as long as you have the recommended requirements its runs pretty well. Alt-tabbing while playing screws the game over and freezes up ur computer though. Also, sometimes it will slow ur computer down for a hile after you exited the program. Overall no hassles though :) great gme.

How long can you drive with a bad headgasket?

The primary response is: Stop driving the car and have the head gasket replaced. You are risking extensive engine damage and increased cost. One of the damaging leaks is internal: oil in the water, water in the oil. Even if you have an external leak, you risk running out of water or oil and causing engine failure. An external oil leak may cause an engine fire. So, unfortunately, I can not recommend you continue to drive the car. Without knowing more and just guessing at costs, you might pay $500 now or pay $3000 later for a complete engine replacement. The work can be extensive and I would recommend having it done by a mechanic qualified to do the job. When the gasket is replaced, the HEAD should be checked at a machine shop and repaired as necessary.

Is loaris Trojan remover a scam ... when you first scan your computer a number of false positives appear ... it seems that perhaps this happens so you are forced into buying the program?

Yes.

I represent Billings Information Technology Service. We have run a thorough test on this software and determined it to be a "Scam" and more importantly, a program that give false positives as well as injects code into the computer, so that it can then detect it as a Trojan.

TEST COMPUTER

New Toshiba Tecra A11 S3510

Symantec Internet Security 2010

Results: Symantec did not detect the download itself as a threat. However after installing, I ran the "Scan" from within Loaris which produced some interesting results. First, it detected safe files such as Autorun.inf in the Windows directory as a threat and systray.exe, 000StTHK.exe. More importantly, it introduced tmp.edb and log.txt, threats it detected as Trojans. Interesting enough, log.txt, a file that is locked and created by Loaris Trojan Remover.

Reminds me of the car mechanic that was hired to fix the engine and introduced other problems to ensure the client would pay for services that weren't needed. Also reminds me when BB got slammed for diagnosing a computer problem as a motherboard replacement when all that was needed to be done was to plug in the IDE cable.

Scam is too nice of a word.