Tuesday, March 31, 2009

How to Avoid a Virus Attacking Your Computer

In a time when data exchange traffic is very high and there is almost no spot where a PC is not exposed to the World Wide Web, it is no wonder that to be completely freed by any virus attack someone can advise you to completely disconnect your online access. So this is what I want to emphasize: with all the advantages of World Wide Web has to offer and the concept of rapid information data interchange itself, it is our lost to completely isolate ourselves from the main limelight. So accept the World Wide Web with open arms and embrace it. But, equip yourself with the best knowledge and application to avoid from being another victim. These are my simple tips and steps to avoid virus attack:

1. Avoid visiting and downloading file from suspicious and dangerous websites. These websites usually include those that contain adult content and websites that sell or offer illegal serials and cracks. These kind of websites usually have so many suspicious popup windows and applications that upload automatically without our knowledge. There are so many other websites that do just like this. But fortunately, some major web browsers like Mozilla Firefox can offer a significant security defense for sightseeing of what lies ahead before you click a link or continue entering unknown addresses. Its enhanced security method will warns you if the site is unsecure.

2. Avoid using file sharing application if your system is not equipped with adequate protection. Even if you do have, you need a very best of them to get you protected from virus that lurking in the channel. It is because there is almost no guarantee that the file you are accessing and downloading are virus free since it comes from unknown and untrusted source. Furthermore it might be the virus itself. If what you want to do is downloading music, just go directly to iTunes or Rhapsody.

3. Deactivate autorun function for all removable media drives like floppy drive, optical drive, and flash disk. You need to do this because even the most advanced virus out there is still need a trigger to run, be it a click from your mouse, a command from a recognized program, or a command from Windows itself such as commanding a newly inserted media to run its autorun program. Autorun specifically designed to make us enjoyed content automatically: CD music and DVD movies played automatically by your favorites multimedia player application, data files automatically explored by your Windows Explorer, and your new bought application directly bring you to the front window. But what if the autorun program is the one that you don't want at all like virus? So it is better to leave autorun function unactive.

4. Whenever receiving emails, do not open the one that you don't sure where it comes from. Especially if the title are suspicious and the email contain attachment. So please don't be flattered so fast when there is an email from someone you don't know with intimate title like "Love letter for you". For extra safety, use email client that support advance security integration that prevent any active content or remote images popups automatically. If you are using offline email client like Microsoft Outlook or Mozilla Thunderbird, make sure your Antivirus support email scanner function. This will guarantee your antivirus have the capability to access and scan the incoming emails.

5. Do not open CD or any optical disk from someone you don't know, especially if it's home made. Unlike general assumption, optical disks can easily become the medium of virus. Because not like the old days when CDs are only produced by large corporate who have a far better protection, nowadays CDs and DVDs can be produced easily in any house in the world with very poor protection of virus.

6. When all is done, make sure that you update your antvirus database in daily basis and scan your entire system in weekly basis. Better still, find antivirus that not also have additional features of antyspyware protection and antispam protection, but also offers firewall function. Thus it will be your ultimate protection from the wild wild world of data exchange traffic we called as world wide web.

Some Related Topic
How to manually Remove antivirus XP pro
How to manually remove Antivirus 360
Computer Support

Friday, March 20, 2009

Fix Invalid Disk Error

Operating system facing problems but not every body know about computer troubleshooting, which they have not troubleshooting tips they need to computer support for troubleshooting. This post provide further information about Fix Invalid System disk Error.You may also receive this error message when you start your computer by using a Windows Startup disk, or you may receive the following error message:

This version of Windows does not run on DOS 7.0 or earlier.

This issue can be caused by any of the following conditions:

* Your computer may be infected with a boot-sector virus such as the AntiCMOS.A virus.
* Your computer is running an anti-virus program.
* Your computer is using hard disk management software (such as Disk Manager, EZ-Drive, or DrivePro) for hard disk geometry translation. These tools provide support for large hard disks (more than 1024 cylinders) when your computer's Basic Input/Output System (BIOS) does not support large hard disks.
* Windows Setup was unable to copy the system files to the hard disk.
* Security software has disabled access to drive C.

To fix this issue use one of the following

Computer Is Infected with a Virus
Use an anti-virus program to detect and remove the virus, and then reinstall Windows. Boot-sector viruses infect computers by copying information either to the boot sector on a floppy disk or the partition table on a hard disk. During startup, the virus is loaded into memory. Once in memory, the virus typically infects any non-infected disks that your computer is connected to.

Computer Is Running Anti-Virus Software
Start your computer by using the Windows Startup disk you created during Windows Setup, and then use the sys command from the Windows Startup disk to restore the system files to the hard disk.

Some computers use built-in anti-virus software that must be disabled in the computer's BIOS. For information about how to change settings in the BIOS, view the computer's documentation or contact the manufacturer of your computer.

Computer Is Using Disk Management Software
In some cases, Windows may not properly detect that you are using disk management software and may overwrite the master boot record (MBR) information. Refer to the documentation for the disk management software you are using for information about restoring the MBR.

Also, check the Setuplog.txt file for the following statement:
FSLog: BIOS Heads=:64:, BootPart Heads=:64:
The preceding number (64 in this example) may vary from computer to computer. If these two numbers are different, replace the system files on your hard disk according to the instructions in the following "Reinstall the Windows System Files" section. For additional information about how to determine if your computer is using a drive overlay program

Reinstall the Windows System Files
WARNING: If you are using Disk Manager or any other disk drive overlay program on a hard disk, make sure that the overlay driver is loaded before you use the sys command on that hard disk. If the overlay driver is not loaded and you use the sys command on the hard disk, the drive may not be recognized as being partitioned by the disk drive overlay program and you could experience loss of data or an inability to boot from the drive.

Although you can use the sys command with Ontrack Disk Manager and later versions of MicroHouse EZ-Drive (or EZ-Max) after the overlay driver is loaded, earlier versions such as EZ-Drive 2.01s require that operating system files be copied to the overlay installation disk and installed by the overlay utility. In such cases, the overlay may be damaged if you use the sys command on the hard disk.

1. Start your computer by using the Windows 95 or Windows 98 Startup disk.
2. At the command prompt, type the following commands, pressing ENTER after each command:

attrib c:\msdos.sys -s -h -r
copy c:\msdos.sys c:\msdos.xxx
sys c:
attrib c:\msdos.sys -s -h -r
del c:\msdos.sys
copy c:\msdos.xxx c:\msdos.sys
attrib c:\msdos.sys +s +h +r
3. Remove the Windows Startup disk, and then restart the computer.

Security Software Enabled
Some third-party programs prevent (lock) access to hard disks in your computer. If this software is installed, contact the manufacturer about how to remove this software and safely restart Windows 98 Setup. For additional information about Windows Setup and troubleshooting

Thursday, March 12, 2009

How to manually remove Power Antivirus

PowerAntivirus2009, is a fake anti-spyware. Like other fake antispyware, Power Antivirus 2009 might launch false system alerts. This Power Antivirus 2009 popup is supposed to scare you into buying Power Antivirus 2009.In this post i am goging to discuss how to manually remove spyware PowerAntivirus 2009.

Follow the steps:

Step 1:- Stop unwanted process running in background.

Click Start then Run and type taskmgr.exe.
Click on Process tab in Task Manager and locate the following Image name(s).
Power Antivirus 2009
Highlight the Image name and Click End Process to stop.
Close the Task Manager.

Step 2:- Uninstall the Suspicious program from the computer.

Click on Start and Run, type appwiz.cpl, press Enter.
Locate Power-Antivirus-2009 in Add and Remove Program.
Click on Remove (Uninstall) button.
Close Add or Remove program.
Restart the computer.

Step 3:- Delete the suspicious file(s) or folder(s) from the computer

Click on Start and Run, type c:\progra~1, press Enter.
Locate the following file(s) and Delete.
Click on Start and Run, type %UserProfile%\Application Data , press Enter.
Locate the following file(s) and Delete
Click on Start and Run, type c:\Documents and Settings\All Users\Start Menu\Programs , press Enter.
Locate the following file(s) and Delete
Close the Window.

Step 4:- Manual Removal of suspicious entries from Registry.

CAUTION: Changing the Registry incorrectly could cause your comuter to stop working. Please make sure to create backup of registry or create system point before proceeding.

Click Start, Click run and type regedit.

Create a registry backup.
Locate the following registry keys, right click and Delete.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Start Power-Antivirus-2009.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\Start Power-Antivirus-2009.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\URLSearchHooks\Start Power-Antivirus-2009.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Toolbar\Start Power-Antivirus-2009.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Explorer Bars\Start Power-Antivirus-2009.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Extensions\Start Power-Antivirus-2009.lnk
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\Start Power-Antivirus-2009.lnk
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\URLSearchHooks\Start Power-Antivirus-2009.lnk
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\Start Power-Antivirus-2009.lnk
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Explorer Bars\Start Power-Antivirus-2009.lnk
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Extensions\Start Power-Antivirus-2009.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\URLSearchHooks\Power-Antivirus-2009.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Toolbar\Power-Antivirus-2009.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Explorer Bars\Power-Antivirus-2009.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Extensions\Power-Antivirus-2009.lnk
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\URLSearchHooks\Power-Antivirus-2009.lnk
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\Power-Antivirus-2009.lnk
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Explorer Bars\Power-Antivirus-2009.lnk
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Extensions\Power-Antivirus-2009.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\URLSearchHooks\Power-Antivirus-2009.exe
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Toolbar\Power-Antivirus-2009.exe
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Explorer Bars\Power-Antivirus-2009.exe
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Extensions\Power-Antivirus-2009.exe
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\URLSearchHooks\Power-Antivirus-2009.exe
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\Power-Antivirus-2009.exe
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Explorer Bars\Power-Antivirus-2009.exe
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Extensions\Power-Antivirus-2009.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Power Antivirus.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\Power Antivirus.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\URLSearchHooks\Power Antivirus.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Toolbar\Power Antivirus.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Explorer Bars\Power Antivirus.lnk
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Extensions\Power Antivirus.lnk
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\Power Antivirus.lnk
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\URLSearchHooks\Power Antivirus.lnk
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\Power Antivirus.lnk
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Explorer Bars\Power Antivirus.lnk
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Extensions\Power Antivirus.lnk
Restart the computer.

Thursday, March 5, 2009

Windows XP-based computer cannot read CD or DVD

This post describes how to troubleshoot common problems that may occur when a Microsoft Windows XP-based computer cannot read a CD or a DVD in a disc drive. This post provide a methods that you can use to try to resolve these problems.

Methods to resolve the problem

Check the disc for damage and clean the disc

Whenever you experience problems with a disc drive, always check the disc first to see whether it is damaged or dirty. A good way to do that is as follows:

1.Remove the disc from the drive, and then examine the disc for damage, for scratches, or for cracks.
2.If the disc is damaged, contact the manufacturer of the disc to obtain a replacement.
3.When you receive a replacement disc, see whether the computer can read.
4.If the computer can still not read the disc, try cleaning the disc by using. a disc cleaning kit, or by gently wiping the silver side of the disc with a soft, lint-free cotton cloth.

Note Do not use a paper cloth to clean the disc because that can scratch the disc.

5.Wipe the disc from the center, outward.

Note Do not use a circular motion because that can scratch the disc.

6.See whether the computer can read the disc.
7.If the computer can still not read the disc, try cleaning the disc by using one of the following items:
•A water-dampened cloth
•A commercial CD cleaning solution
•A commercial DVD cleaning solution

8.When you are finished, dry the disc thoroughly, and then insert it in the disc drive again.
9.See whether the computer can read the disc.

For More of troubleshooting View This Link