When I run the Eclipse.exe within the given folder, it will not start. The Eclipse splash screen will appear for a split second then close. There are no errors.
What system you have - 32-bit or 64-bit? You say it was installed into (x86) folder. But normally (x86) is a default for the 32-bit JDK, not for 64-bit JDK. If you used defaults, then it seems that you installed 32-bit JDK instead of 64-bit.