Visual Studio 2015 Setup Blocked

Question

I get at Setup Blocked trying to install VS 2015 on win 7 x64

I had a CTP version installed, but I have uninstalled it, ran a reg clean, manual search and removed any key with vs 2015 or version=14, but stil I get this error. :-(

from the log file:

Condition 'CurrentOperation = "Install" AND (CommunityCore_Version14 < v14.0.23104.0) AND (ProfessionalCore_Version14 > v0.0.0.0) AND (ProfessionalCore_Version14 < v14.0.23104.0) AND NOT(ProfessionalCore_Version14 = v14.0.23107.0) AND (UltimateCore_Version14 = v0.0.0.0)' evaluates to true.

any ideas ?

Solution

I found and downloaded the old CTP, installed it again and uninstalled it using the /uninstall /force flags

it solve the problem.