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How To Fix Pulse Secure Error 1603?

Fix Pulse Secure Fatal Error 1603

Pulse secure error 1603 is a fatal error that occurs on a Windows 10 computer. The error mostly occurs while you try to install a software. If you are facing this issue, carry out the steps that are given below to fix the error.

Pulse Secure Error 1603

Step 1: Closing Background Apps

  • If you are running any other applications, close them and try to install the software.
  • Press the Windows and X buttons together to launch the Task Manager window.
  • Select the Processes tab, select a running process, and click on the End Task button.
  • Similarly, close each process and check whether you are able to continue the installation without the error.

Step 2: Checking The Software If It Is Already Installed

  • If you have already installed the same software on your computer, you may receive the error.
  • Press the Windows and R buttons together to open the Run dialog box.
  • Now, type appwiz.cpl in the Search section and hit the Enter key.
  • If you find that the software has already been installed, select the software and click on the Uninstall button.
  • When prompted for confirmation to remove the software, select Yes.
  • Once the software is removed completely, you can reinstall the antivirus software. This will be helpful to fix Pulse secure error 1603.

Step 3: Checking The Hard Drive Space

  • If the hard drive is full, you have to free up some space to install the software.
  • Check the program's HDD storage system requirement.
  • Now, check your hard drive for the available space.
  • Press the Windows and E buttons together to launch the File Explorer window.
  • Select the This PC tab on the left panel.
  • Now, right-click on the C: drive and select the Properties option from the displayed list.
  • Click the General tab to see the space available on the drive.
  • If you don't find enough space on the drive, uninstall the unwanted applications from the computer to free up space.
  • Now, try installing the software and check whether the Pulse secure error 1603 is resolved.

Step 4: Restart the Windows Installer Service

  • Launch the Run dialog box, enter services.msc in the search section, and click OK.
  • Now, locate the Windows Installer Service and double-click on it.
  • If you find that the service is stopped, click the Start button. If it is running, select the Stop button and then click the Start button.
  • Click Apply and then restart your computer to fix the Pulse secure error 1603.