You may fail to download Bootstrapper files in Synapse X due to blockage by the antivirus/firewall applications or your ISP. Moreover, you may also get the error under discussion if Synapse X is not launched with administrative privileges.

The affected user encounters the error when he tries to launch/install the Synapse application. Some users encountered the error just after the download, whereas other users encountered it after using it for a long time.

Fix: Failed to Download Bootstrapper Files Synapse X - 1

Failed to Download Bootstrapper Files Synapse X

Before proceeding with the troubleshooting process, make sure the Synapse website is up and running . Moreover, perform a simple restart of your system to check if the problem is solved (a solution reported by many users to work).

Solution 1: Launch Synapse X with Administrator Privileges

In the latest version of Windows, Microsoft has beefed up the security and privacy features of its OS. One of such features is to use UAC to restrict access to vital system resources. You may encounter the error under discussion if Synapse X does not have the right to access protected system resources. In this context, launching Synapse X with administrative privileges may solve the problem.

  1. Right-click on the shortcut icon of Synapse X and then click on Run as Administrator . Run the Launcher as Administrator
  2. Now check if Synapse X is operating fine.

Solution 2: Use a VPN Client or Try Another Network

ISPs impose different types of techniques and methods to control traffic and safeguard their users. You may encounter the error at hand if an essential file/service/resource is blocked by your ISP. In this context, using a VPN may solve the problem. You can opt to use another network or hotspot of your mobile.

  1. Download and install a VPN client of your choice.
  2. Now launch and connect to your preferred location. You can opt to use another network or hotspot of your mobile (but keep an eye on the size of the download).
  3. Then check if your Synapse X is clear of the error.

Solution 3: Turn Off Advanced Security (Xfinity Only)

xFi Advanced Security by Xfinity adds an extra layer of protection (in the real-time) for your devices by blocking malicious sites and cyber-threats. You may encounter the error under discussion if xFi Advanced Security is blocking access to the Synapse website. In this scenario, disabling the xFi Advanced Security may solve the problem.

  1. Launch the xFi app/site and navigate to More .
  2. Now select My Services and then Disable xFi Advanced Security. Disable xFi Advanced Security
  3. Then launch Synapse X to check if it is operating fine now.

Solution 4: Allow Synapse X Through Your Antivirus (Windows Defender) and Firewall Applications

Antivirus and Firewall applications play a vital role in the security of your system and data. You may encounter the error at hand if your antivirus/firewall application is blocking essential file/service/process for Synapse X. In this context, temporarily disabling your antivirus application and turning off your firewall may solve the problem. You can also opt to add exceptions for files/services/processes related to Synapse X in Antivirus/Firewall settings.

Warning : Proceed at your own risk as disabling (or adding exceptions to) your antivirus/firewall applications may expose your system to threats like viruses, trojans, etc.

  1. Temporarily disable your antivirus .
  2. Turn off your firewall temporarily.
  3. Keep an eye on Windows defender , if it takes up the role of antivirus/firewall, then disable it as well (at least disable real-time protection of Windows Defender). Disable Real-Time Protection in Windows Defender

If you want to add an exception for Synapse X in antivirus/firewall settings, then add an exception for the whole folder of Synapse X. For illustration, we will discuss the process for Windows Defender.

  1. On the Taskbar of your system, click on Windows Search box and type Virus & Threat Protection . Then in the list of results, click on Virus & Threat Protection. Open Virus & Threat Protection Settings
  2. Now, scroll down till the end and then click on Manage Settings (under Virus & Threat Protection Settings ). Click on Manage Settings Under Virus & Protection Settings of Windows Defender
  3. Then, scroll down till the end and then click on Add or Remove Exclusions (under Exclusions ). Open Add or Remove Exclusions in Windows Defender Settings
  4. Now click on Add an Exclusion and then in the menu shown, click on Folder . Add an Exclusion for a Folder in Windows Defender
  5. Now navigate to the Synapse X folder and click on Select Folder .
  6. Then launch Synapse X to check if it is clear of the error.

If you are still having issues, redownload and reinstall (with administrative privileges) the Synapse X while keeping your antivirus/firewall disabled (do not forget to add an exception for the complete folder of Synapse X in the antivirus/firewall applications especially Windows Defender).

It will be a good idea to clean boot your system before redownloading and reinstalling the application or close all unnecessary processes through the Task Manager. If possible, try to use antivirus like The Web Root which is compatible with Synapse X . Also, when extracting Synapse archive, try to use File Explorer (not WinRAR or 7-Zip, etc.).

How to Fix “Printer is in an error state” Issue?

The error “ WinRAR Error: Next Volume Is Required ” usually appears when you’re extracting a multi-part RAR archive and WinRAR can’t find (or can’t correctly identify) the next file in the sequence . This often happens when a volume is missing , stored in a different folder , or renamed in a way that breaks the archive’s expected order .

Fix: Failed to Download Bootstrapper Files Synapse X - 2

In this guide, we’ll go over the most reliable fixes confirmed by affected users, along with what each method is doing behind the scenes so you can choose the right one for your situation.

Important: To extract multi-volume archives, you should always start extraction from the first file in the set. This is usually file.part1.rar , or (in older sets) the main .rar file that comes before .r01 , .r02 , and so on.

1. Download and Place the Missing RAR File

WinRAR needs all parts of a multi-volume archive to complete extraction. This error usually appears when one of the volumes in a set like .part2.rar , .r01 , .r02 , .001 , and similar naming formats is missing . Downloading the missing volume and placing it in the same folder as the other parts allows WinRAR to continue extracting normally .

  1. Look at the error message or review the list of archive parts in the folder.
  2. Identify which volume is missing (for example, part2.rar , .r02 , .001 , etc.).
  3. Go back to the website or source where you downloaded the archive.
  4. Locate and download the exact missing file using the same naming format as the others.
  5. Make sure the new file name matches the pattern of the rest. Example: If you have file.part1.rar and file.part3.rar , the missing one must be file.part2.rar .
  6. Move the downloaded missing volume into the same folder as the other archive parts.
  7. Confirm that all parts are in a single folder before extracting.
  8. Right-click the first file in the series (usually part1 or the main .rar file) and select Extract Here or Extract to Folder .
  9. WinRAR should now detect all volumes and continue extraction normally .

2. Manually Browse & Select the Next Volume

Use this method only if the next volume already exists , but WinRAR is failing to detect it automatically. This can happen due to incorrect naming , the file being in a different location , or a temporary file access issue. Manually browsing helps WinRAR locate the correct volume and resume extraction without interruption .

  1. Right-click the first file in the series (usually .rar or part1.rar ) and select Extract Here or Extract to Folder .
  2. When WinRAR cannot find the next volume, it will show the “ Next Volume Is Required ” message.
  3. A small window will appear, allowing you to manually select the next volume .
  4. Use the file explorer window to locate the folder where the other archive parts are saved.
  5. Select the next part based on the naming order (example: select file.part2.rar after file.part1.rar ).
  6. Make sure the selected file matches the naming format of the archive (no extra characters like (1) and no mismatched numbering).
  7. WinRAR will resume extraction using the selected volume .
  8. If additional volumes are missing or stored separately, WinRAR may prompt you again. Repeat the same process until extraction completes.

3. Rename the RAR files in Order

WinRAR relies on a proper naming sequence (such as file.part1.rar , file.part2.rar , file.part3.rar ) to extract multi-volume archives. If a file is named incorrectly, contains extra characters, or is out of order, WinRAR may fail to locate the next volume and show this error. Renaming the files correctly helps WinRAR follow the sequence and extract the archive without interruptions .

Note: Renaming only changes the file name , not the file contents. The goal is to restore the correct sequence so WinRAR can detect the next volume.

  1. Go to the folder where all the RAR files are saved.
  2. Make sure all parts of the archive are present and stored in the same folder .
  3. Check how the parts are currently named . Common patterns include:
file.part1.rar, file.part2.rar, file.part3.rar
file.rar, file.r01, file.r02, file.r03
  1. Look for files that don’t match the expected numbering pattern (for example, file.part01.rar , file.part1(1).rar , or unrelated names).
  2. Rename each file so it follows the same order without extra characters or mismatched numbering. Example:
Incorrect: file.part1.rar, file.part3.rar, file.part2(1).rar
Correct: file.part1.rar, file.part2.rar, file.part3.rar
  1. Make sure the text before the number is exactly the same for all files.
  2. Only the last part number should change.
  3. Right-click the first file in the series (usually part1.rar or the main .rar file) and select Extract Here .
  4. WinRAR should now recognize the sequence and continue extraction normally .

If you still get the same prompt: the archive set is likely incomplete (a part was never downloaded or was removed), or one of the volumes is corrupt and must be re-downloaded from the original source.