Arduino IDE is not opening (Could not reserve enough space)

Hi, I tried to open lastest version of Arduino IDE (1.8.9) on my computer (Win 7 x64 16Gb RAM). It didn't open and after running an arduino_debug.exe I got this:

Picked up _JAVA_OPTIONS: -Xmx2048M
Error occurred during initialization of VM
Could not reserve enough space for 2097152KB object heap

I manage to open it after changing -Xmx in both arduino.l4j and arduino_debug.l4j form -Xmx512M to -Xmx4096 but in return, it showed me this:

Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit

I will be very grateful for your help

IDK if you fixed it yet but... I managed to fix mine by changing the "System Variable" for "_JAVA_OPTIONS" in ("System Properties"-"Advanced"-"Environment Variable"), from ("-Xmx2048m") to ("-Xmx1G") and if it breaks anything else on my computer I'll find out later... but oh well