Download, Fix, and Update Update.mar

Last Updated: 07/04/2022
[Time to Read Article: 5 minutes]

Update.mar uses the MAR file extension, which is more specifically known as a Microsoft Access Report file. It is classified as a Database (Microsoft Access Report) file, created for Tor Browser Bundle 8.5.5 by The Tor Project.

The first version of update.mar for Tor Browser Bundle 8.5.5 was seen on 09/03/2019 in Windows 10. According to our records, this is the primary and most recent file release from The Tor Project.

In this short article, you will discover detailed file information, steps for troubleshooting MAR file problems with update.mar, and list of free downloads for every version that exists in our comprehensive file directory.

File Analysis Provided by Jason Geater (Author)

Recommended Download: Fix update.mar / Tor Browser Bundle-related registry issues with WinThruster.

Compatible with Windows 10, 8, 7, Vista, XP and 2000

Average User Rating


Optional Offer for WinThruster by Solvusoft
| EULA | Privacy Policy | Terms | Uninstall

File Overview

General Information
File Name: update.mar
File Extension: MAR file extension
File Type: Database
Description: Microsoft Access Report
User Popularity Rating:
Developer and Software Information
Software Program: Tor Browser Bundle 8.5.5
Developer: The Tor Project
Software: Tor Browser Bundle
Software Version: 8.5.5
File Details
File Size (Bytes): 19200000
Oldest File Date: 11/22/2019
Latest File Date: 11/22/2019

What are update.mar Error Messages?

General update.mar Runtime Errors

Update.mar file errors often occur during the startup phase of Tor Browser Bundle, but can also occur while the program is running. These types MAR errors are also known as “runtime errors” because they occur while Tor Browser Bundle is running. Here are some of the most common update.mar runtime errors:

Microsoft Visual C++ Runtime Library

Runtime Error!

Program: C:\Users\Tester\Desktop\Tor Browser\Browser\TorBrowser\UpdateInfo\updates\0\update.mar

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

Most MAR errors are due to missing or corrupt files. Your update.mar file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Tor Browser Bundle), or deleted by a malware infection. Furthermore, update.mar file corruption could be caused from a power outage when loading Tor Browser Bundle, system crash while loading or saving update.mar, bad sectors on your storage media (usually your primary hard drive), or malware infection. Thus, it’s critical to make sure your anti-virus is kept up-to-date and scanning regularly.

How to Fix update.mar Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your update.mar issue. These troubleshooting steps are listed in the recommended order of execution.

Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the update.mar error, please proceed to the Step 2 below.

Step 2: If recently installed Tor Browser Bundle (or related software), uninstall then try reinstalling Tor Browser Bundle software.

You can uninstall Tor Browser Bundle software by following these instructions (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "Uninstall" and press "ENTER".
  3. In the search results, find and click "Add or Remove Programs"
  4. Find the entry for Tor Browser Bundle 8.5.5 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Tor Browser Bundle software.

If this Step 2 fails as well, please proceed to the Step 3 below.

Tor Browser Bundle 8.5.5

The Tor Project

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many update.mar error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the update.mar error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

If Those Steps Fail: Download and Replace Your update.mar File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate update.mar file version. We maintain a comprehensive database of 100% malware-free update.mar files for every applicable version of Tor Browser Bundle. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download update.mar Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Tor Browser Bundle folder location:
    Windows 10: C:\Users\Tester\Desktop\Tor Browser\Browser\TorBrowser\UpdateInfo\updates\0\
  4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve update.mar problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

Download update.mar Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying update.mar to your appropriate Windows system directory. The Tor Project typically does not release Tor Browser Bundle MAR files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing update.mar and all other MAR files for Tor Browser Bundle. An incorrectly installed MAR file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10

Files Related to update.mar

MAR Files Related to update.mar

File Name Description Software Program (Version) File Size (bytes) File Location
update.mar Microsoft Access Report Tor Browser Bundle 8.5.5 19200000 C:\Users\Tester\Desktop\Tor Browser\Browser\Tor...

Other Files Related to update.mar

File Name Description Software Program (Version) File Size (bytes) File Location
setupact.log Log Tor Browser Bundle 8.5.5 62521 C:\Windows\Panther\UnattendGC\
api-ms-win-core-profil... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 17528 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
api-ms-win-core-sysinf... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 19064 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
diagwrn.xml Extensible Markup Language Tor Browser Bundle 8.5.5 5718 C:\Windows\System32\Sysprep\Panther\
diagerr.xml Extensible Markup Language Tor Browser Bundle 8.5.5 44109 C:\Windows\Panther\UnattendGC\


Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

Browse Other File Extensions in Alphabetical Order :   # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

You are downloading trial software. The purchase of a one-year software subscription at the price of $39.95 USD is required to unlock all software features. Subscription auto-renews at the end of the term (Learn more). By clicking the "Start Download" button above and installing "Software", I acknowledge I have read and agree to the Solvusoft End User License Agreement and Privacy Policy.