Is this a Virus or Spyware?

I tried Revo Uninstaller but it couldn't find Nox App Player, so I installed it again and used Revo to uninstall it but no results.

theCodeFather said:

I tried Revo Uninstaller but it couldn't find Nox App Player, so I installed it again and used Revo to uninstall it but no results.

Well, are you familiar with Regedit? Win+R+regedit.exe. Search for Nox_unload.exe + nox + nox player. Click F3 each time to reach the end of the loop.
You should try first to take a tour to see what the search engine returns.
You must be prudent with nox alone, because you may get undesirable results. Delete what is related to nox only.

Note: In Revo, when deleting files (advanced) there is a popup from Nox asking you to delete their app with their internal uninstall program. Did you answer <<no>> to this popup?

MikeMecanic said:

Then try Revo Uninstaller pro for removing leftover.

If Nox is not shown in the main page, in the upper left corner, select Forced Uninstall, type the name of the program <<nox player>> and then click advanced + next. Select all twice and delete twice.

Choose the Pro version free trial:
Download Revo Uninstaller Freeware - Free and Full Download - Uninstall software, remove programs, solve uninstall problems

Good luck,
This is the bug you have:
WHAT IS nox_unload.exe -Fix nox_unload.exe errors (Solved)

If Revo can't uninstall it you may need to reinstall it first to "fix" what is missing (since you deleted the folder you may have deleted needed files to uninstall it), and then once it's reinstalled correctly you can uninstall it completely.