What should I do if the antivirus software doesn t work, if the antivirus software doesn t work?

Poisoned. Watch the next 360 to give it a try.

Your poison is not light. If not, you can only reinstall the system!

If you have a virus, disconnect from the network and install antivirus software in safe mode, Kaba, NOD32, KV2008, etc.

There's a virus, right? The anti-virus software on your computer has also been poisoned, and your permissions have been changed.

You can go into safe mode with the next 360 first aid kit and see if it works. If that doesn't work, then redo the system, and if the problem persists, format your hard drive and redo the system.

(Maybe deleted by mistake, it can be recovered in the software).

2. It may not be 360's fault that all the exe files are damaged, you can fix them like this: open "My Computer", enter the menu "Tools" "Folder Options" "File Type", then you can't find the file type with the extension exe in the existing file type, it doesn't matter, click "New" to pop up the "New Extension" dialog box, fill in "exe" in the "File Extension" box, then click "Advanced", and select "Application" in the "Associated File Type" drop-down box, Click OK to return, and finally click Apply to close the dialog box.

Not yet, hi me.

Hardware failure. Poor heat dissipation.

If it is a desktop, check the host CPU fan to see if it is spinning very slowly. Remove it, clean up the dust with a small brush or hair dryer, and then drop a little lubricating oil into a small hole in the fan.

If it is a book, check whether the air outlet is blocked. Clean up the dust, if it won't be disassembled, it is recommended to find someone to repair it.

I think there are two possibilities that are bigger! One is to delete one or some system files, resulting in a leak in the system and not working normally! Second, it may be poisoned, I don't know what antivirus software you are using now, it is recommended to scan it with 360 antivirus, and the one that can't be killed is manually deleted in safe mode!

Then try it with a good antivirus, I recommend you 360 antivirus, 360 antivirus is a completely free antivirus software, 360 antivirus has been certified by win7, can run stably on win7, 360 antivirus compatibility is good, check and kill thoroughly, and the miskill rate is low. Original four-engine antivirus. The killing effect is better, and there are hundreds of millions of users, which is trustworthy.

You can use it with confidence.

When you use the 360 system for first aid, and the antivirus software can't be opened, you can use it. Double-click the 360 System First Aid Kit and click "Start System First Aid". After the system engine is initialized, click Repair, select the type to be repaired, click Repair Now, and restart the computer.

Then use 360 security guards to kill and kill.

Poisoning confirmed. It is recommended to uninstall antivirus software. Check boot startup programs and services to remove useless and suspicious ones. Then install a new antivirus, Kaspersky is recommended. In the antivirus can be carried out.

It may be that there is a problem with the computer settings, so consult a professional.

A ghost solves all problems!