SYMPTOM:
“Error: Not enough memory” error occurs when performing Express Install of Strategy 10.6 on Windows as shown below:

If switch to Custom Install, there is no error complaining the memory shortage.
CAUSE:
This is working as designed.
Express installation does allow user to proceed with installation when RAM is 4GB and required is 5GB minimum.
ACTION:
Ensure at least 5G memory available to proceed the installation.
Article Reference Number: KB441622