If your QuickBooks is crashing when opening, you must resolve this as soon as possible. Avoiding such problems can cause you to lose data. The factors that might lead to this issue are a corrupt user.ini file, malware attack, an outdated QB version, and many more. Moreover, it can also take place if the company's files are damaged.


After researching deeply about this issue, we have come to some facts and brought you this comprehensive guide. The blog includes segments about causes and solutions to help you rectify the problem at the root. Get deeper into the post and explore the information.


If you still can’t open QuickBooks and work on it, you must contact a professional for help. Give a call at 1-855-888-3080 and get connected with a QB expert.

Origins: Why QuickBooks Won’t Open

In this section, you are given a list of causes that might be contributing to the QuickBooks crashing when opening issue.

  • It can be due to an outdated OS.
  • This problem can occur if the user.ini file is corrupt.
  • Due to a damaged company file, this issue can occur.
  • You may fall into such an issue due to a malware or virus attack.
  • It is because you might be using an older QB version.

If QuickBooks is Crashing When Opening, Try These Solutions

Take the following solutions into consideration and prevent QB from crashing. See what the methods are, and how they need to be implemented.

Run QuickBooks File Doctor

  • Open the QB Tool Hub.
  • Choose Company File Issues.
  • Tap on Run QuickBooks File Doctor and wait up to a minute to let it open.
  • Note: If this fails to open up, search for QuickBooks Desktop File Doc and open it manually.
  • Now, hover over the company file dropdown and choose yours.
  • If you can’t find your company file, tap on Browse and search for it.
  • Choose the Check your network option.
  • Select Continue.
  • Enter the admin password.
  • Tap Next.

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Configure the firewall manually

  • Head to the Start menu.
  • In the search box, write Windows Firewall and open it.
  • Choose Advanced Settings.
  • Now, right-click on the Inbound Rules.
  • Choose New Rule.
  • Click on Port.
  • Tap Next.
  • Here, you need to see if the TCP option is selected.
  • Head to the Specific local ports field.
  • According to the QB year version, enter the port number:
  • QuickBooks Desktop 2020 and later: 8019, XXXXX.
  • QuickBooks Desktop 2019: 8019, XXXXX.
  • QuickBooks Desktop 2018: 8019, 56728, 55378-55382.
  • QuickBooks Desktop 2017: 8019, 56727, 55373-55377.
  • After you have entered the port number, choose Next.
  • Click on the Allow the Connection option.
  • Tap Next.
  • If you are prompted, confirm that all the profiles are marked.
  • Choose Next.
  • Now, create a rule and name it QBPorts(year).
  • When it is done, choose Finish.
  • Follow the steps to create outbound rules, too. Instead of choosing the Inbound Rules option in step 4, click Outbound Rules.
  • Open QB Desktop and switch to multi-user mode.

Final Thoughts

To wrap it up, there can be a number of reasons why QuickBooks is crashing when opening, such as a damaged company file, an outdated QS, a malware attack, etc. To eliminate this problem, you have been provided with a set of resolutions. For more information, connect with a professional and ask your queries at 1-855-888-3080.

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