IntelliJ IDEA: the maximum heap size (-Xmx) might be too large

If you happen to start IntelliJ IDEA, and you see a message box stating the following:

"the maximum heap size (-Xmx) might be too large"

Solution:

1. Go to IntelliJ IDEA instalation dir\bin (in my case: C:\Program Files (x86)\JetBrains\IntelliJ IDEA 10.5\bin)
2. Open and Edit the file: idea.exe.vmoptions
3. Lower the value of the entry: -Xmx2048m  (in my case i lowered the value to : -Xmx1024m)