Norton, or other anti-virus programs, may try to quarantine Pirform after you have installed it. The instructions below are for Norton, but similar apply to other anti-virus programs.
If this happens, a pop up will appear in the bottom right hand corner or your screen., if this happens, click OPTIONS.
A window will open explaining why Norton has blocked and removed the program, click the Options button as shown below
Then click the Restore button as shown below
Make sure there is a check mark in the Exclude this risk from future scans, and click Yes as shown below.
The last screen will show you that the program has been successfully restored from quarantine.