Java Install Error 1601 QuickBooks

QuickBooks is a very handy software when it comes to managing the accounting and financial operations of a small or medium-sized business. This superb software handles all the paybooks, bills, receipts and tax table etc. related operations and reduces the workload from over you.

It also saves your precious time and a lot of manpower just by making your accounting process automatic. There is a very little scope for error. However, as much handy it is, some external application can create hindrance in its installation. Java Install Error 1602 is a common quickbooks installation error that most users face.

What is the Java Install Error 1601 that pops up while trying to install QuickBooks?

At times while trying to install QuickBooks Desktop, you may face the problem where your operating system will create trouble for you. Java Install Error 1601 is one such error that hinders the installation of QuickBooks Desktop on your computer.

These kind of Quickbooks errors could be very frustrating to deal with.

“Error 1601: Windows Installer is not accessible”

is the message that pops up on the screen while you try to install QuickBooks on your computer. This error comes up only when you had not restarted the computer after updating/installing the files. Another scenario where this error comes up is when the windows installer is either damaged or disabled.

What are the reasons that responsible for Java Install Error 1601 QuickBooks

However, there are several reasons that are responsible for this Java error. Few of them are listed here:

  • It might happen that your Microsoft Windows Installer has gets damaged or corrupted 
  • There might be some issue with the QuickBooks downloaded file 
  • QuickBooks operating program was refused permission
  • They may bolt your files
  • Perhaps some malware and viruses have compromised your programs area unit
  • This error generally gives error codes on the top that are generated once in your Windows.
  • Due to this error, software gets infected with a widespread attack and also related software packages.

How to fix Java Install Error 16021 to help install QuickBooks?

I am going to guide you through a few simple solutions which might resolve this error for good. Take a look:

In this method, we will check whether the operating software has been disabled somehow:

  • Go to the start, enter msc in the search panel and hit enter.
  • In the next screen, in the services (local), we will right-click Windows Installer> Properties.
  • Go to the startup type drop-down list, check whether it is disabled, select manual
  • A new heading service status will appear. Click on start button below it and then click
  • This should be enough to resolve the installer issue.

In this method, we will try to re-register the Windows Installer.

  • Go to the start button and click windows+R key.
  • In the command prompt, type exe/unreg and go on to click ok.
  • A confirmation message might appear on the screen. Click
  • Now, we will go back to the start button and once again we will click windows+R key.
  • In the command prompt, we will type exe/regserver and hit ok.
  • Another confirmation message might appear on the screen. This time too, click
  • Now, we will try to install QuickBooks Desktop and check if the problem persists.
  • If the issue is still not resolved, we will move on to the next solution.

In this option, we will download the latest version of Windows installer and install it on the computer. This last solution should be able to resolve the error for good.

  • Firstly install the Diagnostic Tool, it helps to resolve the various types of issues which are  related to the third party application such as – MSXML , .NET Framework OR C++.
  • Then Login as an Administrator .
  • After that open the browser and search QuickBooks Install Diagnostic Tool.
  • Now  Click on the download link of QuickBooks Install Diagnostic Tool.
  • Then  close the background application and right click on the QBInstall_Tool_v2.exe file and click the Run option.

The simple solutions provided above should be able to resolve the Java Install Error 1601 that you face while trying to install QuickBooks Desktop on your computer. The process involves very less technical knowledge of the computer, so it should be easier. In case, you face any difficulty while trying to go through the whole process, or if you need assistance with any other QuickBooks and related products you can get in touch with our QuickBooks Technical Support Team. They are a third party agency with excellent troubleshooting experience in the industry.

Need Professional Help?

You can get in touch with one of the QuickBooks Technical Support Experts by calling at their toll-free number at any point of the day. They provide their services right across the world.


  1. What do you understand by Java Install Error 1601 QuickBooks?

    It is basically a java error which occurs when users are not able to update the installation. This error comes with an error message saying the installer for windows is not available.

  2. What are the possible ways to get rid of Java Install Error 1601 QuickBooks?

    However, there are various possible ways to fix this error. Here are some of the effective methods are listed:

    💠 Method 1: Check your Windows installer service 
    💠 Method 2: Use QuickBooks Install Diagnostic Tool
    💠 Method 3: Try to register your windows installer once again
    💠 Method 4: You can also perform the QuickBooks clean install

  3. How do we make use of QuickBooks Install diagnostic tool?

    Follow the steps in the sequence order to use the QuickBooks Install diagnostic tool. To use it, you have to first download and install and then you can use it.

    💠 Initially, launch your system and login as an Admin 
    💠 Now, open your browser and look for the “QuickBooks Install Diagnostic Tool”
    💠 If there is any program running in the background, close them (if any)
    💠 Before that, you have to go to the page where the downloaded link is located 
    💠 Make a double-click on the same
    💠 And then  save your file in the local desktop
    💠 Click on the file named “QBInstall_Tool_v2.exe by making click on it 
    💠 And then hit the “Run” option 
    💠 Finally, you can check your issue gets resolved once it completes the scan on your system.

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