I have KIS 2015 installed on computer and I found a way to manually reset its trail from the Regedit.exe HKEY_LOCAL_MACHINE > SOFTWARE >Wow > Kasperskylab > AVP > environment. and edit the PCID Value data with a random numbers and letters i tried this but it didn't work at all but this is not the most important thing i forgot to exit the Kaspersky program before i edit in its registry. Now I'm not an expert in registry issues I just want to know if every thing is alright or there is a something wrong with anything ? After this i tried the reset tool and its success resetting trial period ( just for informing u ) I think now i have to completely remove Kaspersky from my computer and replace it with a free antivirus so what is the best way to completely uninstall KIS 2015 ? is the normal way will be effective ? and what about the trial reset tool is the computer will need any clean after using it ? And after uninstalling KIS which free protection choice should i have (a Complete antivirus and Internet security software/s) ?