Hi,
Assuming you are trying to download Home and Business and Standard for the same year. You can just use one install. Its only the IKC (installation key code) you will need to activate either Standard or Home and Business.
In case you have Standard already installed you can follow these steps to activate Home and Business (if you have the IKC for Home and Business):
Hope this helps!
Hi
I followed the 4 steps but it still hasn't updated to home & business. I have another question. I indicated that I have a T4A for a job I got paid through commission but now it thinks I have a business. It keeps asking me for my business number and other information about a business that I don't have. It wants me to "fix" my errors before I file my tax return. What should I do?