5 Tips on What to Do When Synapse X fails to Download UI Files

If you are into the tech side of managing and regulating Roblox games, you likely know what Synapse X is and what it does. Evolving from the Synapse Lua script injecting software, Synapse X is hands down one of the most popular and refined versions of the Lua script that worked pretty well with Roblox initially.

Despite being such a responsive and highly refined scripting engine, we can’t deny the fact that even Synapse X runs into a lot of problems, especially because downloading the UI files often run into certain errors. It could be due to security errors or due to antivirus limitations in your system.

Whatever the hassle is, this article will explore and highlight everything you need to do when Synapse X fails to download the staple UI files to your system.

Is it Necessary to Whitelist Synapse X in your Antivirus?

To be fair, Synapse X is a Roblox exploiter, so it isn’t surprising that some of the features might be flagged by your antivirus if you don’t whitelist it.

Be it the in-built Windows Defender in your system or third-party anti-virus software, you need to whitelist just about everything in your system so you don’t run into a problem.

The antivirus and the firewall apps often create an error in the function, something that you might experience when you are trying to download the UI files to your system.

If they aren’t disabled, a common message like “failed to launcher files” is going to pop up consistently. However, not everyone is aware of how to turn off the firewall, and if you are one of those people, here are a few steps you can follow:

  • Simultaneously press down the Windows key + R to open the Run windows.
  • In the search bar, type Firewall.cpl and then hit Enter.
  • This will open the Windows Defender Firewall window.
  • Navigate to “Turn Windows Defender Firewall on or off” on the left of the Window.
  • Select the “Turn off Windows Defender Firewall” for both your private and public networks.
  • Once done, press OK to confirm and save the changes you just made.

Now that you have blocked the firewall issue, let us walk you through the top 5 troubleshooting issues that you need to follow through to fix the issues regarding being unable to download the files.

1. Disable real-time protection

Following are the steps you need to follow:

  • Open the system tray and tap on the Windows Security icon
  • Once the options open, click on “Virus and threat protection”
  • Under that Settings, go to Manage Settings
  • In the next window, tap on Real-time protection and turn off that option.
  • Go to Exclusions, tap on the “Add or remove exclusion” link
  • Under the Exclusions window, click on “Add an exclusion” and then select a Folder
  • Search for Synapse X and add it to the exclusion from there

If you are using any third-party protection for your system, you might have to go through with that app’s instructions to disable the real-time protection so it doesn’t hinder the download process for the UI files.

2. Open with administrator rights

If the Synapse X UI files aren’t downloading and you are noticing error messages popping up consistently, the next best thing you can do is open Synapse X using the administrator rights. It allows you to bypass the complications for good and sort things out for yourself.

  • Navigate your mouse icon to the Synapse X shortcut button
  • Right-click on it and click on “Run as administrator”

Doing this ensures that Synapse X has direct access to some of the system-protected resources, which means that you won’t face any further issues accessing or downloading the UI files to your system at all.

Also, once you select to run Synapse X as an administrator, ensure that you close every running background app and relaunch the Synapse X app to check if it works.

3. Use a VPN client

Sometimes, one of the primary reasons why the Synapse X UI files aren’t downloading to your system is because your ISP is blocking the process. It is quite common, especially in countries with strict cyber laws.

If that happens, your only way out of the process is by downloading and installing a VPN to your system. You can use a more flexible VPN like PIA or private internet access to keep those files secure and away from the prying eyes of your ISP so you can download them without any interruptions.

That said, here’s what you need to do:

  • Choose a VPN service provider of your choice. We’d suggest you opt for the paid services, mainly because the free VPNs often track your data and aren’t as safe as you’d expect them to be.
  • Following this, purchase the VPN service and install it on your system.
  • You can then launch the VPN and activate it in your system, following which you can run Synapse X in the background.

Also, when choosing a VPN service, look for the ones with a no-log policy so they don’t track your data at all.

4. Turn off the xFi advanced security

Not many users pay attention to it, but if your xFi advanced security is enabled, be assured that the same can end up hindering the download process.

This is a security service provided by Xfinity, so if you use their internet services and you have Synapse X downloaded to your system, you might have to switch off their advanced security feature before you initiate the Synapse X UI files download.

Here’s how to disable the feature:

  • Open the xFi advanced security app and then click on More
  • Navigate to the next screen and tap on My Services
  • From there, tap on Disable and then tap on “turn off xFi advanced security”

Once you have disabled this feature, you can close all the background apps running and then relaunch the Synapse X app in your system and see if you can download the UI files from there.

5. Try another network

Last but not least in the list of fixes is trying another network. As we just mentioned, there are instances where your internet service provider could be blocking Synapse X from downloading the UI files in your system.

Besides that, sometimes network connectivity issues can also be a reason why you aren’t able to download the Synapse X UI files. 

If that is the case with your system, the easiest way to work around it is by disconnecting from the current network and reconnecting to a new one. Once done, try to relaunch Synapse X and initiate the UI files download process from there.

If the files are downloaded once you have switched to a different network, you can be assured that it was a network issue beforehand.

6. Contact customer support

If the issue with the Synapse X UI files download isn’t getting fixed despite all the methods mentioned, we’d recommend that you directly connect with Synapse X’s customer support team to find out what’s causing the issue in the first place.

Sometimes, if that’s due to the PC issues, you’d have to go ahead and provide the technicians with remote access to the system and let them fix the issue for good.

However, just ensure that you contact them directly from the official website and not from random websites since that can end up being an issue for you.

Why Synapse X is stuck on Downloading DLLs?

If you find Synapse X stuck on downloading DLLs, another method that can help you work around the issue is by deleting the Synapse X/bin/folder along with the auto-launch.

Once you have cleared out the bin, the next thing that you can do is go ahead and run Synapse X as an administrator and see if that reinstates the download process from there. 

Also, if you are launching Synapse X directly from the folder, we’d recommend that you use File Explorer instead of the staple file archiver utility to sort out the Synapse archive issues.

That aside, you can also uninstall and reinstall Synapse X into your system to check whether the downloading process is happening or going through.

Is Synapse X safe for your system?

Since Synapse X demands you to whitelist or disable firewall or antivirus in your system, wondering whether or not Synapse X is safe and reliable for your system is quite common. Don’t worry though, we’d recommend that you focus on downloading Synapse X from their official website only. The last thing you want is to download it from random websites just because it’s free.


That’s all that you need to know about sorting out the issues with Synapse X not downloading the UI files to your system. It could be a simple software bug or it could be a temporary issue with the file or antivirus. Whatever it is, what you need to do is find what’s causing the problem and then implement relevant fixes for the issue.

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