Check your files

Just like if you post an offensive remark on Twitter, or send a colleague an off-colour joke, when you deal with clients you are liable to be judged by your communication.
The very last thing you want, then, is to send them something that could potentially damage their computer.
Yet, unless you have good antivirus software installed on your system, you could be sending people files that are infected by viruses.
When people think of protecting their computer, they may just have in mind whether their photos or documents could be destroyed. What few people consider is the wider implication of leaving their computers vulnerable to attack.
Once you have a virus on your system, potentially every time you send out an email – especially with an attachment – you are passing it on. It’s like having the ‘flu and deciding that you’ll still get on a plane.
Perhaps, if you sent your client a document attached to an email, that person would simply accept that it was unintentional. But there’s a chance that their own system could be vulnerable, and anyway they might think from that point on that if you were the kind of person who didn’t take the issue of security of your own computer seriously, you’re not someone they want to do business with.
It’s vital, then, that even if you don’t have a lot of money available and choose a free antivirus program, you do the best you can to protect your computer. There are plenty of free antivirus downloads available, not all of which might give you the level of protection professional software does.
If you decide to purchase antivirus protection, there are plenty of sites you can visit to assess which program to use. Antivirus software comes with a variety of price tags and bells and whistles, so you can choose the one you think is most suitable for you. If you don’t trust reviews, you can get a trial version such as Kaspersky free antivirus, and see for yourself.
Don’t forget, though, to check regularly that it’s doing its job properly. If somehow the software has been disabled, or you’re running an outdated version, then you are at risk.