title: WMIC If / Else Statement for Software Version
body: <p>I'm trying to use PowerShell to move install files, uninstall any previous version of the software, remove the install directories, and execute the BAT file.</p>
  
  <p>My domain has finally updated and allowed WinRM to run on our machines, making patching much easier to facilitate remotely.  I'm working my first script to do this involving updating Java.  What I want to do is use PowerShell Studio to deploy a script, this script will kill all the tasks Java is attached to, use <code>wmic</code> to query the installed Java version and call for uninstall, and then <code>Start-Process</code> a BAT file which will do the install, and then clean itself up.  What's happening is when I run into a machine with NO Java on it, I get "No Instance(s) Available".</p>
  
  <p>Googling and looking around here, I can't seem to get my If / Else statement right and was looking for some help.</p>
  
  <pre><code>taskkill /F /IM iexplorer.exe
  taskkill /F /IM chrome.exe
  taskkill /F /IM outlook.exe
  
  wmic product where "name like 'Java%%'" call uninstall /nointeractive
  
  Start-Process -FilePath 'C:\Suppot\Java\java.bat' -Verb runas -Wait
  
  RD /S /Q "C:\support\java"
  </code></pre>
  
  <p>What I would like to happen is to watch the machine update and install Java quietly in the background, refreshing Control Panel to verify in testing, that it works.</p>
  
  <p>What happened is there was an error in the code, and the uninstall worked and it failed after that.  On the next run, it now fails when it can't find a version of Java to remove.</p>