VS2017 Intellisense is slow and sometimes it crashes, any suggestions?

I'm working with the community edition of VS2017. Version 15.2(26430.14) which is the latest update as of 07/Jul/2017. Intellisense is sporadically slow, and stops normal progress of my coding effort. It seems to "wake up" after about a 10 to 20 second wait. But today, it crashed, and the activity log showed this information.

 <entry>
<record>1709</record>
<time>2017/07/06 00:17:33.497</time>
<type>Error</type>
<source>Editor or Editor Extension</source>
<description>System.InvalidOperationException: Cannot Match.  The session is dismissed.&#x000D;&#x000A;   
at Microsoft.VisualStudio.Language.Intellisense.Implementation.CompletionSession.Match()&#x000D;&#x000A;  
at Microsoft.VisualStudio.Language.Intellisense.Implementation.CompletionSession.OnViewBuffer_Changed(Object sender, TextContentChangedEventArgs e)&#x000D;&#x000A;  
at Microsoft.VisualStudio.Text.Utilities.GuardedOperations.RaiseEvent[TArgs](Object sender, EventHandler`1 eventHandlers, TArgs args)

At the time I was editing XAML and adding a Binding to the IsOpen property of a ContextMenu. After closing the editor and reopening, it worked fine...

I've removed all Plug-ins but Code Maid, which I'll try next. However, I'm looking for suggestions to this hiccup.

Solution

The root cause of this problem was the new version of CCleaner Cloud Edition. Once I removed this software the problem all intellisense slowness and crashes ceased!