Quick Heal product key is single user copy. If you have two operatings system on single computer ( i.e Dual Boot ) then  use multi-os feature of Quick Heal to deploy the same license on dual operating system.

To install QH on dual OS do the following procedure:

1. Download, Install and activate the Quick Heal using the product key you have on the first Operating System.

Download it from http://quickheal.com/installer.asp

2. Boot the system in another OS of the same system.

3. Click Start ---> Run and Browse the Quick Heal Installer file.

Most Important : 4. Once you select the installer file, type the text  /multi 
 

For Example :  "D:\QH\qhts32.exe /multi"

Installation will begin and it will show you multi installation notification wizard.

5. It will ask the previous installed folder path of Quick Heal(1st OS)

(i.e C:\Program Files\Quick Heal\Quick Heal.......\ )

4. Browse the path to locate QH folder in the first O.S , and QH will get activated automatically on 2nd OS also.

5. click Next to install it.

Above procedure will install Quick Quick Heal on your second operating system with same license.