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How I do re-install the webplayer when it fails to work?

I have tried to install the Unity Web Player multiple times. I have installed, installed again, unistalled, reinstalled, installed over, installed Unity Setup 2.6.1.....

I have downloaded UnityWebPlayer.exe from my son's Chaotic site and from NASA. Every time I run the program it says it has installed, but everytime a click a link to start it, it asks to install again.

I went to this site http://unity3d.com/webplayer/version/ and it says... Unity Plugin version: not installed Unity Engine version: not installed

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asked Feb 10, 2010 at 04:22 AM

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42 1 2 5

@Sean, did you ever get it to work?

Apr 04, 2010 at 06:46 PM Cyclops

I am getting the auto update failed error now, and none of the steps described above helps. I have also tried deleting the tmp files and the network management have opened a rule for *.unity3d.com.

Urgent matter, please help.

Apr 08, 2013 at 10:11 AM adrianemile

Check your cookies.

Nov 19, 2014 at 02:51 AM meat5000
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3 answers: sort voted first

I am not totally sure you should download our webplayer from any site other than ours. No-one has the rights to host our webplayer other than us, so please be careful if you download from unauthorised sites.

I would recommend the following:

If you are unable to play games based on Unity webplayer please follow these steps:

On PC:

a) Close all browsers.

b) Use Control Panel Add/Remove Programs to remove the Unity Web Player from your machine.

c) Reboot your machine.

d) Download from our website a new copy of the latest webplayer plugin (http://unity3d.com/webplayer/) and save the file to your desktop.

e) Close all browsers.

f) Run the webplayer installer.

g) Once the installer had finished, visit our website at the following address:


On Mac:

a) Log onto your mac with a user account that has admin privileges.

b) Close all web browsers

c) Delete the file called:

/Library/Internet Plug-Ins/Unity Web Player.plugin

d) Empty the trash.

e) Reboot the Mac and log in with an admin account.

f) Visit:


If the webplayer has installed correctly, and your machine is capable of playing Unity content, then you should see our demo running in your browser. If you can see our demo then other games should run also. If you do not see our demo running, please tell us in as much detail as possible what happens at each of the steps above.

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answered Apr 04, 2010 at 01:02 PM

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Graham Dunnett ♦♦
27.9k 37 62 188

This site really needs a "Unity Employee" badge. Or is that what the two rhomboids by the name mean?

Apr 04, 2010 at 02:08 PM Ricardo

I would assume anyone with "Administrator" rights (which is what these are: ), would be an employee of Unity Technologies (or something very close to that).

Apr 04, 2010 at 05:18 PM qJake

We actually choose to use StackExchange because it allows everyone on the site to be equal. All us can build up reputation on the site by helping others. At the current time, Duck has the highest reputation and he is not a Unity employee. Choose your answers based on reputation, not on whether they work for Unity!

Apr 11, 2010 at 08:52 AM Graham Dunnett ♦♦

all steps works great i got win 7 x64 , i uninstalled, rebooted, reinstalled, rebooted, tried the demo didn't work, manually installed, tried the demo didn't work, can't you just make a working install patch or something??

Jan 03, 2012 at 11:16 AM Oujee

Same here, nothing works for me. I followed the instructions written above but every time I try to install Unity web Player the window pops up

Error opening file for writing: Unity/WebPlayer/UnityBugReporter.exe Click Abort to stop the installation, retry to Try again, or Ignore to Skip this file.

So, I always have to cancel the installation, unfortunately. I guess I have to find games which do not require this weird player.

Jun 26, 2013 at 09:08 AM Syn77
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You should contact support@unity3d.com about this.

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answered Feb 10, 2010 at 07:23 PM

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andeeee ♦
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The answer I gave is that standard response you'd get from support. ;-)

May 13, 2010 at 10:03 AM Graham Dunnett ♦♦
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I am having this same issue with playing Kings Bounty Legions on Facebook. It was working fine and then all of a sudden when I log into the game it's asking me to install Unity Web Player. It already was installed and working fine. I have followed every suggestion I can find (about uninstalling, rebooting, reinstalling etc) and nothing is working. I am running Windows 7 with 64 bit, and using Chrome as my browser. It has not been a problem accessing this game in the past and I am at a loss to why it stopped working. Any suggestions please?


Ok, finally found what was stopping Unity Player from working on my computer. I am on Windows 7 and using Google Chrome as my browser.

Open a browser and type in the address bar: chrome://plugins/

find the Unity Player in the list and make sure it is 'enabled'. Mine was disabled for some reason. Once I enabled it, it is working perfectly now.

Hope this helps someone else out there with this same problem!

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answered Nov 19, 2014 at 02:50 AM

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If the webplayer fails to load (Windows XP and Pro).

Go to run type services.msc

Find Terminal Services and set it to Automatic, and then Click start services if it isn't started.

Not sure why it's turned off for some people, but there's probably a similar answer for other versions of Windows.

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answered Feb 14, 2014 at 03:21 AM

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asked: Feb 10, 2010 at 04:22 AM

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Last Updated: Nov 19, 2014 at 02:51 AM