above explains about antivirus, you do not need internet connection for an antivirus to scan, you can even update the antivirus with a usb flash drive, read link above and post back with further questions,
I am using avast free at this time which is pretty good
there is also 360 Internet security by Quiho which is free.
hi. im having problems installing avast. im using portable firefox browser and i updated it. but after i download avast, it said that i need to update idm. but the update jsut couldnt finish. my idm has a crack file. could it be the reason.? thanks
follow the instructions above, but task manager being disabled, and you are the administrator, generally means infection.
If you do not have an antivirus at this time, then I would wipe the drive and install portable firefox again, or if you can , download and run the following:
Download, install, update and do full scan with these free malware detection programs:
Problem: It is due to some kind of virus/ trojan activity which normally disables the task manager.Now due to this problem when ever the user press alt+ctrl+del to launch windows task manager it gives an error saying “Task Manager is being disabled by your administrator”.
Solution:
To Enable the Disabled Task Manager on your system
1. Press window key+r to show run prompt
2. Follow the following steps
Enter gpedit.msc in the run prompt and click OK
In the Group Policy settings window
Select User Configuration
Select Administrative Templates
Select System
Select Ctrl+Alt+Delete options
Select Remove Task Manager
Double-click the Remove Task Manager option’.
Set the property of this item as disabled.
For Those who use Windows XP Home Edition can use the registry to enable Task Manager
1. open start >> run and type regedit
2. Navigate to the following path:
Hive: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
3. You will find a registry key with name DisableTaskMgr of type: REG_DWORD
4. Double click the key with and set the Value to 0
5. Exit the registry and restart to see the effect.
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I cut the above out of the link , it works fine for me.
yeah. i did what is said in the instructions. but nothing happens. i also type regedit in cmd but it also says the administrator disabled it. i think i my unit is seriously infected. ill try to install the malware programs you gave to me and ill give you feedback to what happens.