javaw.exe is a program which is probably NOT a virus. So, if javaw.exe is on your system, it is probably ok, and will NOT be a cause for concern. Even if your PC is clean, we still advise you to use a good antivirus with a good track record, in order to defend your system against threats.
Usually, the default name and folder where this program is stored is
C:\Program Files\Java\jre1.8.0_121\bin\javaw.exe.
The MD5 fingerprint for this file is 7f0467c3aa5bdaf44bbc824ac81359d0.
This application does NOT run as a Windows service. This is usually a good sign.
This executable uses the net to communicate. In this day and age this is expected from a program. For example, most of the apps on your computer check for new updates. For this, Internet communications are required.
64-bit code has been detected. This exe can use the full power of a current PC cpu.
The description written in the file is Java(TM) Platform SE binary.
File version stored as a property 8.0.1210.13.
Company name Oracle Corporation.
Legal copyright notice Copyright © 2016.
javaw.exe appears to have visible windows. This is good because it doesn't operate in a kind of invisible mode. Its activity is clearly shown to you.
javaw.exe has a digital signature. Today most serious programs are digitally signed.
The digital signature extracted from javaw.exe is valid. This is most likely a clean, ok program.
Digitally signed by: Oracle America, Inc.
Certificate's issuer name: Symantec Class 3 SHA256 Code Signing CA
It has an uninstall routine, which is a good sign. si are uninstall.