Exchange2010: OWA/Outlook(Online) Search not returning any results after installing Rollup Update for Exchange 2010.

Outlook (online),OWA users search the Exchange 2010 server content index – called Exchange Search. Sometimes search stops working, after installing rollup updates for Exchange 2010.There are many issues that cause search not to function properly. This  blog post is to help troubleshoot one such specific issues with filter pack. A. Test if MSearch is experiencing deadlock situation, Run Troubleshoot-CI.PS1 Script from Exchange…