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HOW TO REMOVE VIRUS WITHOUT ANTIVIRUS

Virus is just a program written to do some operations by running in the background process.

A virus first changes the registry values and it starts eating process of the system.
So registry back up is recommended regularly.U can back up registry from any of the registry cleaner softwares or registry back up softwares like CCleaner,backup registry,fix registry etc…

To remove the virus manually one should be aware of the process running in his system
u can use hijackthis to note down and check process running in background and even to disable them.
so download hijack this and install

then if a virus is infected to the system follow these steps

• check with the hijackthis remove the virus(or any suspicious programs) which is in the startup,So the virus program is removed
• Then check ur hard drive further for any more suspicious programs or virus and remove those .exe files manually by shift+delete keys
• Then check for registry editor,if it is disabled then do the following
  
• steps 1) Click Start, Run
  
• 2) Type GPEDIT.MSC and Press Enter 3) Go to the following location a)User Configuration b)Administrative Templates c)System 4) In the Settings Window, find the option for “Prevent Access to Registry Editing Tools” and double-click on it to change. 5) Select Disabled or Not Configured and choose OK 6) Close the Group Policy Editor and restart your computer 7) Try opening REGEDIT again
• This enables ur registry editor from where u can enable task manager and show hidden files options etc….

PREVENT PENDRIVE VIRUS

Prevent PenDrive Virus
:: Do the following ::

1) Disable autorun/autoplay function of your pen drive.

2) Now plugin your pen drive and open any folder of your computer.
(Do not open any folder from ur pen drive.)

3) Now goto tools then select Folder Option
In that box mark the Show Hidden Files & Folders option.
Also Uncheck Hide Extension for known file types & Hide Protected OS files.

Now click apply and ok buttons and close that folder.

4) Nome come to desktop
On the Desktop, click on windows Start button and select Search for files & folders.

When the search dialog box appears on the screen, in that click on All Files & Folders, now click on More Advanced Options then select search Hidden files & folders.

Now go above & in Look In option, select your pendrive letter (For example E: Or G:)
and hit Enter.

5) Now if you see any unknown .Exefiles, simply delete them all.