javaw.exe is a application which is most likely legit. So, if javaw.exe is on your system, it is most likely ok, and will NOT cause problems. Even if your system is clean, we still advise you to run a well-known antivirus with a good track record, in order to yourself yourself against potential security problems.
Usually, the default filename and folder where this application is stored is
C:\Users\UserName\AppData\Roaming\Oracle\bin\javaw.exe.
The MD5 checksum for this file is 5dc0128e8a2017e82289191820c736a5.
This application does NOT operate as a Windows service. This is usually a good sign.
This application uses the net to communicate. Today this is expected from a program. For example, most of the apps on your PC check for new updates. In order to do this, Internet communications are required.
This application runs as a 32-bit program. It does not exploit the full set of features of nowadays' computer CPUs. This ordinarily happens because the authors did not upgrade it to use the x64 instruction set.
The description extracted from the exe is Java(TM) Platform SE binary.
File version 8.0.600.27.
Author Oracle Corporation.
Legal copyright notice Copyright © 2015.
This program does NOT have visible elements of user interface. This is most likely a bad thing.
javaw.exe is digitally signed. Today the large majority of virus-free programs are digitally signed.
The digital signature found in javaw.exe verifies as ok. This is very good.
Digitally signed by: Oracle America, Inc.
Certificate's issuer name: Symantec Class 3 SHA256 Code Signing CA
This executable is registered to start when your PC starts. Yes
This executable does NOT have an uninstall routine set up in registry.