On How Many Computers Can I Install a Copy of Norton 360?
You can install Norton 360 on up to three computers at one time. To install your copy on a computer, simply insert your product CD in the drive and start Norton setup.
If you have bought the download version of Norton 360 at Symantec online store, you need to re-download the setup file if you don't have it and install Norton 360 on additional computers in the household.
Norton 360 standard license allows you to install the software on up to three household PCs without paying for additional licenses.
Please bear in mind, that you can only install on three computers concurrently and if you'd like to install Norton 360 on a fourth computer, then you must de-install the software from one of the computers you previously installed Norton 360 on.
To download Norton 360 installation file from Symantec, go to
http://www.symantecstore.com/downloadYourProduct
and download Norton 360 on your second or third computer. In order to complete the download, you'll be requested to type in your order number and customer password. After your identity is confirmed, your order information will be displayed.
If you forgot your order number or password, you can use your registered email address to do the order lookup.
When your order is found, click Start Download to download your Norton 360 setup file.
If you purchased your product more than 60 days ago, you can buy the Extended Download Service to recover your installation file.
