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Uninstalling/Installing Software Applications (Rebooting Computer) - Resolving Windows Installer Corruption

When using the Windows Operating System, the previous version of a software application must be removed prior to the installation of a new version of the same software application.  In order to achieve this, you must first remove the program using Add/Remove Programs and then secondly reboot the computer.  After rebooting the computer, you can then install the new application.  Rebooting the computer fully uninstalls the existing application.  If you (a) do not uninstall the existing application using Add/Remove Programs and then reboot the computer or (b) install the new version of the application on top of the existing version of the application, you will corrupt the computer.  Corruption can cause the computer to act in an erratic fashion not just in relation to the software application.  It can cause the computer to reboot, the computer to run slowly, Internet Explorer not to function, etc.  This behavior can mimic a virus infection but it is not.  The issue is the proper use of the Windows Operating System.  It is not uncommon to see this issue with the removal and installation of: Antivirus Applications, Microsoft Office and HP Full/Basic Multifunction Printer Drivers.  When the computer has been corrupted, you must then perform a variety of steps.  As an example, following are the steps that are performed to resolve this form of corruption with an HP Full/Basic Multifunction Printer Driver:
  1. Click Start - Control Panel - Administrative Tools - Services.

  2. Stop all HP Services that may be running.

  3. Rename C:\Program Files\HP to C:\Program Files\HP.old  (Please do not perform this step on a Hewlett-Packard computer.)

  4. Rename C:\Program Files\Hewlett-Packard to C:\Program Files\Hewlett-Packard.old  (Please do not perform this step on a Hewlett-Packard computer.) 

    If you are unable to rename the folders to .old, hit CTRL-ALT-DEL and End Task on
    any relevant HP Service/Process that may be running.

  5. Click Start - Shutdown - Restart to reboot the computer.

  6. Delete C:\Program Files\HP.old  (Please do not perform this step on a Hewlett-Packard computer.)

  7. Delete C:\Program Files\Hewlett-Packard.old  (Please do not perform this step on a Hewlett-Packard computer.)

  8. Empty the Recycle Bin.

  9. Delete the printer from Start - Control Panel - Printers.

  10. Click Start - Control Panel - System - Hardware - Device Manager.

  11. Disable all USB Universal Host Controllers.

  12. Click Start - Control Panel - Add/Remove Programs.

  13. Using Add/Remove Programs, remove the HP Printer Driver Entries.

  14. Click Start - Shutdown - Restart to reboot the computer.

  15. Click Start - Run.

  16. Type: regedit

  17. Click OK.

  18. Browse to HKEY_LOCAL_MACHINE - SOFTWARE and delete the HP registry key.  (Please do not perform this step on a Hewlett-Packard computer.)

  19. Browse to HKEY_LOCAL MACHINE - SOFTWARE and delete the Hewlett-Packard registry key.  (Please do not perform this step on a Hewlett-Packard computer.)

  20. Run registry cleaner using Advanced System Care Free.

  21. Run registry cleaner using Wise Registry Cleaner.

  22. Click Start - Shutdown - Restart to reboot the computer.

  23. Click Start - Control Panel - Administrative Tools - Event Viewer to confirm that you
    have performed these steps correctly.

  24. Reinstall the HP Full/Basic Multifunction Printer Driver.

  25. Click Start - Shutdown - Restart to reboot the computer.

  26. Click Start - Control Panel - System - Hardware - Device Manager.

  27. Enable all USB Universal Host Controllers.  If it is not already connected, connect the printer.  The printer is automatically detected.  The issue has now been resolved.
In the off chance that you are prompted for a missing MSI, you can easily resolve this issue by performing the following steps.  In this example, the missing MSI was AIOSOFTWARENPI.MSI.  This MSI is on the HP Full/Basic Printer Driver CDROM as well as the download executable.

  • If you are using the CDROM, perform a Search using the name of the MSI.  Once you have located the MSI location, copy and paste the source location folder into the prompt and click OK.  The issue has now been resolved.

  • If you are using the download executable, install WINRAR in order to extract the download execuatable to a folder.  Perform a Search of the folder using the name of the MSI.  Once you have located the MSI location, copy and paste the source location folder into the prompt and click OK.  The issue has now been resolved.

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