I use ESET for year and i didn't have any problem with viruses.Its fast , nonintrusive,light and easy to use. The rest is story.
Best antivirus is that what you like ,aford and don't slow your PC.
If is an Android ,sync your contacts with a google email account. And all your contacts will be saved in your account.And if buy a new phone sync with that google account and you will have all your contacts in your new phone.
He is afiliate to some sites who sell stuffs and if you buy thru his link ( spam) he get payed. Some sites pay 5% to 10% from every sale. And maybe is payed by others to make advetise for them.
It doesn't matter what type of processor you have the windows instal is the same on any PC. Put the Windows CD in your optical drive , restart, go in BIOS setup and put the optical drive first booth device , save and quit.
Better to move the company to Cayman island ,Liechtenstein , Monaco almost 0% taxes. He want to stay in US and want to pay taxes. The government take money from a few honest companies and give the money to others companies.