How to Fix QuickBooks Error 99001?

quickbooks error 99001

QuickBooks Error 99001 message may appear during program installation, Windows start-up or shutdown, or even during the installation of the Windows operating system, and while the QuickBooks is running. Keeping a record of when and where the error message is popping up, comes handy as a crucial piece of information while trying to troubleshoot the problem.

Causes of QuickBooks Error 99001

Runtime errors like QuickBooks Error 99001 particular error can be caused by a variety of factors, so it is highly recommended to troubleshoot every possible cause of the error to prevent it from reoccurring in the future. Listed below are a few causes of QuickBooks Error 99001 runtime error:

  • Incomplete installation of QuickBooks or corrupt download of the files.
  • Malware or corruption in Windows Registry from a recent change in QuickBooks.
  • Windows system files or QuickBooks-related program files corrupted due to malware or virus infection.
  • QuickBooks related files got deleted mistakenly by another program.

Effects of QuickBooks Error 99001

Listed below are some of the effects that Error 99001 runtime error can have on your system or on your QuickBooks related files:

  • The error message pops up and crashes the active program window.
  • The system where QuickBooks is installed frequently crashes when running the same program.
  • Windows runs and responds slowly and sluggishly.
  • The system freezes for a few seconds from time to time.

How to Troubleshoot QuickBooks Error 99001?

Repairing the registry entries:

Manually editing the Windows registry to remove and troubleshoot runtime error may prove fatal if you are not a computer service professional or an expert in this field. It may also be instrumental in crashing your operating system and cause irreversible damages. Even one misplaced comma may prevent your device from booting to its entirety.

Also Read: How to use QuickBooks Auto Data Recovery?  

Conducting a full malware scan of the Computer:

There is a chance that QuickBooks 99001 runtime error is being caused by a malware infection in your computer; therefore, it is highly recommended that you conduct a full malware scan of your computer to prevent these malicious intruders from damaging, corrupting, or even deleting Runtime Errors-related files.

Cleaning up of the system junk with disk clean-up:

Since, over the course of time, your computer accumulates junk files from normal web surfing and computer use, it is possible for this error to occur due to file conflicts or an overloaded hard drive. Cleaning up of these junk files will not only help in resolving the issue but also improve system performance dramatically. Listed below are the steps to carry out the disk clean-up process:

  1. After clicking on the ‘Start’ button, type in the word “Command” in the search box and do not hit enter.
  2. Press and hold both, ‘Ctrl+Shift’ keys on your keyboard and then press ‘Enter’.
  3. Click ‘Yes’ when a permission dialogue box appears.
  4. Type ‘cleanmgr’ and hit ‘Enter’ when a black box with a blinking cursor opens.
  5. Now check the suitable checkboxes in the disk clean-up window that will appear and click ‘Ok’.


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Updating the system device drivers:

Runtime errors like such may occur due to out-dated device drivers. Because of the time and complexity involved in updating drivers, it is often recommended to use a driver update tool such as DriverDoc, developed by Microsoft Gold Partner to automate the process. This updates all your drivers and not only the drivers related to this particular error.

Restore the system to undo all or any recent changes:

Carry out the following steps carefully to use the System Restore:

  1. Click on the ‘Start’ button.
  2. Type ‘System Restore’ in the search box and press the ‘Enter’ key in your keyboard.
  3. Select ‘system Restore’ from the displayed result list.
  4. Enter an administrator password if required or prompted.
  5. Follow the steps in the ‘Wizard’ carefully to select a restore point.
  6. Restart the computer.

Running Windows system file checker:

  1. Click on ‘Start’ and type in “command” in the search box and do not hit enter.
  2. Press and hold both, ‘Ctrl+Shift’ keys on your keyboard and then press ‘Enter’
  3. Click ‘Yes’ when a permission dialogue box appears.
  4. Type ‘sfc/scannow’ when a black box with a blinking cursor appears and presser the ‘Enter’ key in the keyboard.
  5. Follow the commands that will appear on the screen.

In case you are having trouble related to QuickBooks, immediately connect with the Certified QuickBooks ProAdvisors at QuickBooks Error Help Number (toll-free).

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