Uninstalling programs – prompts required software for operation

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Hi,

I have quite a bit of a problem. I can’t uninstall any program from Control Panel or however I try. This is the error I get:

I am using Windows 7, and I haven’t received any similar error message up until now.

I haven’t installed any new software so I can’t real figure this out.

 

Java Setup

Error1721.  There is a problem with this Windows Installer package.  

A program required for this install to complete could not be run.  Contact your support personnel or package vendor.

Thank you.

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Answered By 0 points N/A #119895

Uninstalling programs – prompts required software for operation

qa-featured

The Microsoft installation engine probably is corrupted. You need to un-register and register the Windows installer service again. Here are steps to un-register and re register the Windows installer service:

  • Run your computer in Safe mode.
  • Log on as local administrator Run the command prompt.
  • Type msiexec / un-register at the command prompt (msiexec is a component of windows installer service)
  • Type msiexec / regserver at the command prompt
  • Verify this fix by removing a software program From Add or Remove Programs.

If it still not fixed, run the System File Checker. This program scans and verifies protected system files and when it can detect protected files that are overwritten, it will replace it with the correct version. Follow these steps:

  • Run command prompt Type sfc / purgecache at the command prompt.
  • Prepare your Windows installer it may prompt to ask for it.
  • If successful it will show “Windows File Protection successfully made the requested change” message.
  • Run sfc / scannow at the command prompt.
  • Prepare your Windows installer it may prompt to ask for it.
  • Verify this fix by removing a software program From Add or Remove Programs.

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