I am getting "This java instance does not support a 64-bit JVM. Please install the desired version." error while running "server.bat"(orientdb-2.2.28) in windows 8.1(32-bit) . It was working fine till yesterday. Then,I removed "root" user and "isAfterFirstTime" tag from "orientdb-server-config.xml". From that time, it is giving error while running "server.bat" . Even after adding those lines back, it is giving error.
I removed the -d64 switch at the end of the server.sh startup script and it worked. See issue #7553 for details or search for "-d64" in the 2.2 release notes.