How to Fix Nox App Player When Stuck at 99% when Starting Up

This tutorial will Teach You, How to Fix Nox App Player When Stuck at 99% when Starting Up.

Nox App Player is a free Android emulator dedicated to bringing the best experience to users who want to play Android games and apps on PC. Based on Android 4.4.2 and compatible with X86/AMD, it gained a great advantage on performance, stability, and compatibility compared with similar programs like BlueStacks, YouWave or Andy the Android Emulator.

Keyboard typing, camera and microphone integration are basic functions of the Nox App Player. What makes using Nox App Player special is that you can connect a gamepad and controller in a game. When it comes to ARPG (Action Role Play Game), the keyboard mapping function comes even handier since it makes it possible to use the traditional WASD key to control your character in the game, and you can set other keys to release skills or take shots. This is a very practical function since mobile games are developing towards great complexity.

Another noteworthy aspect is the multiplayer mode – an innovative feature that makes it possible for users to run several Nox App Player windows at the same time. Each window can run a different app/game. So instead of pushing other apps to the background, the users can switch between them with ease on the same computer screen. This is like having several phones for real-time multi-tasking.

Some of our users have reported the Nox App Player stuck at 99% when starting up. Here are two different situations and each one could try the solutions below.

Situation One: Nox stucks at 99% in startup and receive no error message

Solution One: some AMD CPU may encounter this due to the effect of amd-v.

Please enable VT (Virtualization Technology) of your computer following this post:

Enable VT to get better performance

Solution Two: Another possible cause is Graphics Card or its driver does not support to run Nox. Please download and run this little tool we have developed: OpenGLChecker. If your OpenGL version < 2.0 you need to change your graphics card.

If your OpenGL version ≥ 2.0 but still stuck at 99%, then you need to update your Graphics Card driver.

Solution Three: If you set your file system to FAT32 it may cause this problem because FAT32 has a limit to the maximum size of every single file. In this case, please change your file system to NTFS or reinstall Nox to an NTFS disc.

Solution Four: CPU only receives part of the parameters returned from Android thus Nox can’t start. This a bit more complex to fix it. Our develpers need to check your PC for remote access.

If are willing to do so, please contact us via this link “Contact For Remote Support” and we will arrange a time for the remote access and assistant.

Do note that you need to install the software called TeamViewer to create such a connection and you can end the process any time you want during the remote control.

Situation Two: Nox stucks at 99% in startup and then receive this error message: System has problems to start, please try to repair!

Note that this only applies to the case of stucking at 99% due to system reasons. Do not change anything in this tool provided unless you know what you are doing.

1. Run Nox App Player as administrator (right-click nox.exe or the Nox icon on your desktop and choose “Run as administrator”)

2. Download this software called “Windows Repair“, unzip it to your computer.

3. Double click to start the “Windows repair” software, go to “Repairs” tab – open repairs (note: you could choose to back up your registry first if you worry any problem this might cause)

4. In the next window appeared, click “start repairs”. The default setting is to restart your computer after repair. If you don’t want to, please untick the box as shown below before you start.

If the above does not solve your problem, please do not hesitate to contact us for further help.

Please make sure to include this information in your email:

1) A screenshot of the error message.
2) Description of the problem.
3) Your computer specifications.
4) Does this issue repeatedly appear?
5) these two log files:

C:Users<Your Name>AppDataLocalNoxNox.log
C:Users<Your Name>vmlog.log

Related Links, Articles, and Guides

Let us know your thoughts or queries in the comments section

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Juan Olivier
Juan Olivier
2 years ago

What worked for me is installing Oracle Virtual Box. Seem OVB installs something Nox Player needs to load to 100%.

1 year ago

I just wanted to share my solution to being stuck at 99% with no error… I realized that the system was running at 99 to 100 cpu there were other apps running in the background, closing down something else that is cpu hungry completely fixed the boot issue. I suggest if you don’t have a system monitor that you open up task manager and click the cpu tab this should show you which programs are sucking up the most of your cpu. from there choose to shut down any apps that may hogging resources. Then try to reboot nox… this was my solution hope it helps someone else