What I expected: It opens Minecraft
What actually happens: It wont open and gave me this Text:
Error occurred during initialization of VM
Could not reserve enough space for 2097152KB object heap
Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
Thank you for your report.
However, your ticket has been resolved as a duplicate.
This issue has been linked to the original bugreport: MCL-86. You can find or add further information on that report.
Please search before reporting any bugs, as it's likely that one exists already.