Right, after reading this forum inside out and tried all sort of things, the solution to this error is very simple.
1 - Right click on the Pro Tools 10.3.3 installer > properties > compatibility > check the box and make it compatible with Windows 7 > then, check the box "Run this program as administrator" (same applies to the Digidesign 003 driver 9.0.2.65)
2 - Once installed, you may get a crash error when launching Pro Tools, it has to be added to the DEP
Control Panel > System > Advanced System Settings > Under the box Performance click on Settings > go to the tab Data Execution Prevention > Turn on DEP... (reboot required) > then, click on "add..." > search for ProTools.exe and you are done.
*Note : Also, it may be a good idea to delete all the preferences before reinstalling it.
C:\Program Files (x86)\Avid\Pro Tools\Databases\Unicode\Volumes
C:\Program Files (x86)\Avid\Pro Tools\DAE\DAE Prefs
C:\Users\Users Name\AppData\Roaming\Avid\Pro Tools