How to Resolve Microsoft Error Code 1603 in Windows?

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Microsoft Office is a must-have software for every Windows device. MS Office has numerous tools that are used for performing various basic tasks. Once you install Office on your PC then you can easily use every tool of this package. But many people face Office 2016 install error 1603. If you are unable to install the Office suite properly then you can’t use its tools. So whenever you get any installation error on Microsoft Office then troubleshoot it immediately.

How to Resolve Microsoft Error Code 1603 in Windows

Causes of Office 2013 error code 1603 0x643

  • Your Windows installer is trying to install the application that is already available on your computer.
  • You are trying to access the substitute drive for installing the Windows Installer package
  • You are not using the admin account of your system and do not have full permission on the folder you want to install. You are facing the error because you require a system account for installing MS Office on your computer.
  • The files you want to install are saved in encrypted form.

Whenever you are trying to install MS Office on your computer and you are getting Office 2013 install error 1603 then you should try to fix the error instantly.

Methods to troubleshoot Microsoft Office 2013 installation problem

Close all the programs running in the background

There are chances that your background running programs are creating conflict while installing MS Office. So close all the background software before you start the installation process of MS Office. Here are the steps for closing Background apps:

  1. Press the Windows and X key simultaneously
  2. A list will appear on the screen
  3. Click on the task manager
  4. Now click on processes tab 
  5. Choose all the software listed under applications
  6. Hit the End Task button

Close all the third-party programs from the processes tab and then try to install Office in your device. If you are still getting error code 1603 error then you should seek other solutions.

Increase hard drive space

Low hard disk space can also be a problem while installing. Every program needs some free disk space for installing and working properly. If your device is running on low space then you can’t install any program. So, you should add disk space on your computer. You can also increase the space by removing unnecessary files and programs from the computer. You can remove movies and series from your hard disk and then try to install Office. You can also remove all the junk and unnecessary files from your computer by following the steps given below:

  1. Go to search bar and type command
  2. Hit the Yes button
  3. Now a permission dialog box will appear on the screen
  4. Hit the yes button
  5. Type cleanmgr and hit the enter button

The disk cleanup tool will start running and check all the files and programs you can delete. Make sure you are removing temporary files from your computer. Now check all the boxes you want to delete. Press the OK button. Wait for completing the process. Now restart your computer and try to install Office. 

Check whether you have already installed the software

You can also get the return code 1603 if you are trying to install the software that is already installed on your computer. So, you should remove the earlier version of the software from your computer. Here are the steps for removing software from the Windows device:

  1. Press Windows and R keys simultaneously
  2. Run box will appear on the screen
  3. Type appwiz.cpl and hit the run button
  4. Go to programs and features page from the control panel
  5. Click on the program you want to uninstall
  6. Now a confirmation page will appear on the screen
  7. Click on Yes button

Once you remove the prior version of Office; install the new version of Office on your computer.

How to Verify the License of Microsoft Office?

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Microsoft Office is a full suite of services and software developed by the company Microsoft. Almost every person uses some services or software from the Office. The first version of the Office plan has Word, Powerpoint, and Excel. These tools are used by everyone. But today Microsoft Office provides a huge number of services like Visual Basic for an application scripting language, Office business applications, common spell check, OLE data integration, Softpedia, etc. The office offers numerous versions according to the end-user and computing environment. 

How to Verify the License of Microsoft Office

The office was developed for Windows PC but today you can use Office on almost every platform. If you want to install Office on your PC then you will require the key. Windows key is a sequence of 25 alphanumeric characters. If you are purchasing the Office from a retail shop then you will get the key inside or on the rear side of the retail box. The key will be imprinted on a bright sticker. But if you have preloaded Microsoft Windows then the key sticker will be on the PC case. You will require this key while installing Office in your device. Without this key, you can’t use Office as this key ensures that you are using a genuine Microsoft Office plan.

Microsoft Office cannot verify the license for this product

This is a very common error faced by many Office users while installing their Office plan. For example, you want to use Word but when you click on Office an error will appear on the screen and you can’t use any Office services. One of the main causes of this error is the compatibility issue. Your Office plan is running on compatibility mode for another OS. 

Follow the steps mentioned below to fix Office cannot verify the license for this product error:

  1. Close all the running Office application
  2. Now you have to locate your Office application according to your installation type.

For Click-to-Run installation:

<disk drive>\Program Files\Microsoft Office\root\Office1x

<disk drive>\Program Files(x86)\Microsoft Office\root\Office1x

 For MSI-Based Installation:

<disk drive>\Program Files\Microsoft Office\Office1x

<disk drive>\Program Files(x86)\Microsoft Office\Office1x

  1. Now right-click on Office application and hit the Properties button
  2. Go to the compatibility tab
  3. Disable the run option
  4. Hit the Change setting for all users button
  5. Disable the Run this program in compatibility mode button and hit the OK button

Now restart your computer and try to use your Office suite. If you are still getting the same error then try other solutions.

Repair your Office

The Office can show you key verification errors if the Office files get corrupted. Repairing the Office tool can fix your error. Follow the steps given below for repairing your Office tool:

  1. Go to the start menu and hit the control panel
  2. Now navigate to Programs and then click on Programs and Features
  3. You will get a list of installed programs. Click on Microsoft Office

Now click on the Quick Repair button. Wait for completing the process. If your Quick Repair tool can’t fix your Office then you can also try Online Repair tool. Now, wait for the repairing process. Once complete, restart your PC and now use your Microsoft Office. If you are still getting the same error message on your screen then you should reinstall Microsoft Office on your computer. Again navigate to the Control Panel and click on Programs. Form Program and Features; click on Office and hit the uninstall button. Once you remove Office from the PC; reinstall it with your Office key. Now you can easily use all your Office software and services.