Know Why QuickBooks Freezes, Crashes, and Runs Slowly
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- 1 day ago
- 3 min read

We have been asked by one of the QB users, “Why is my QuickBooks Desktop running so slow?” In reply to this, we suggested some solutions that helped them resolve it. If you have been struggling with a similar problem, go through this blog from top to bottom and learn the different causes and the solutions to it.
To know why QuickBooks freezes, crashes, and runs slowly, we have given a list of causes, and some of them are a long company name, an outdated Windows OS, and a missing QBWUSER.INI file. To fix it in the first place, you can try updating the software and running the File Doctor. Learn it in depth, and read this blog completely.
Are you tired of sluggish QuickBooks performance? It suddenly freezes, crashes, and runs slowly. You should consult a Pro Advisor to get rid of this issue. To talk, dial +1.833.802.0002.
Exploring the Source Behind the Sluggish Performance of QB
The following are the reasons that can be considered as the triggering factors for QuickBooks freezes, crashes, or runs slowly:
An outdated Windows Operating System.
When the company name is too long.
Due to damaged PDF and preferences files.
It might occur due to the missing QBWUSER.INI file.
Other running applications are interfering.
You are not allowed to operate the Window.
Working Solutions to Resolve the QuickBooks Freezes, Crashes, and Runs Slowly
To resolve it, first check whether your QB is updated. If it is not, download the latest version of the software and then proceed further.
Method 1: Run QuickBooks File Doctor
Open QuickBooks Tool Hub.
Choose Company File Issues.
Click on Run QuickBooks File Doctor, and to successfully operate it, you are required to wait for it to open.
If it doesn’t open by this time, search for it and manually open it.
Go through the company file drop-down.
Choose your company file.
If your company file is also not present there, again, search and browse for this also.
Tap on Check your file and network.
Choose Continue.
Enter your QuickBooks credentials.
Select Next.
Read Also: How to Upgrade or Downgrade QuickBooks?
Method 2: Configure the Firewall
If the above methods could not help you properly, you need to perform this resolution now. Follow the steps below to manually set the firewall.
Adding firewall port exception for QB
Follow these steps if you use multiple instances of QuickBooks on the same computer. The steps are:
Go to the Start menu.
Search for Windows Firewall and open it.
Click Advanced Settings.
Right-click Inbound Rules.
Choose a New Rule.
Select Port and then move to the Next option.
Review and ensure TCP is chosen.
Head over to the Specific local ports field.
Entering the specific ports needed for your QuickBooks version is essential.
QuickBooks Desktop 2020 and later: 8019, XXXXX.
QuickBooks Desktop 2019: 8019, XXXXX.
QuickBooks Desktop 2018: 8019, 56728, 55378-55382.
Let’s Recap
In the end, it can be said that there are many reasons why QuickBooks freezes, crashes, and runs slowly. All the reasons along with the troubleshooting methods have been mentioned in the above sections. Take a walk through the complete guide and fix all your issues. To consult professionals for accurate resolution, dial +1.833.802.0002.
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