No hacks or dll injected hacks work

Hi a few days ago i received a virus. I then had to reset my pc to factory settings. Before the reset i had TG mw3 multiplayer. All the hacks for version 1.4.382 worked before the reset. I had now recently installed the game again with TG and tried a wallhack. Nothing happened. I kept on pressing the inject button but nothing happened. Did the same with a few other hacks but still nothing. I checked version of game and version of hacks they were all the same. No actual hack works anymore: dll, programs or such. Only thing that worked was the stat changer and that worked perfectly. Could it be because i hacked my stats? My pc is 64x- bit Windows 7. What should i do? If anymore information is needed i will gladly add more. some hacks used:Lv. und Stats Hack [1.4.382] that worked,Homohook V4 didn't work, MW3 Hook v1.0.dll didn't work.
Injectors used: Extreme Injector by master131, CP3 MW3 dll Injector. Used them both nothing happened.
Antivirus: Kaspersky. It didn't report, detect or remove any hacks, dlls, programs or injectors. Only the CP3 but its a positive false or the other way round?
Anyways version of cod is 1.4.382 and like i said before it worked before the reset but now nothing works please help!!!:(

Edit: Also I used the same stat changing program before reset and it worked then as well.

Do you have the latest .NET Framework? I know a lot of hacks are coded with that.

already have the latest version i got it as soon as i resetted cos i knew that some hacks need better version of .net the version i have is 4

Are you running them as administrator?

yup lemme try again in any case
Edit: nope nothing

anyone got anything to add? if you have the same problem or similar add to the conversation and if you have any tip post them here!!!
No one looks like they've got a solution for my problem.... Anyone know anything that might help. i mean common someone would at least know anything...

The hack is detected maybe

solutions:

1.Make sure you have the latest direct x and NET Framework downloaded
2.Make sure you are running the hacks / injectors are admin
3.Make sure you are using updated hacks

I have problem with inject homohook v4. its no work. but homokooh v1 works great. whats a problem?
Use tekno MW3