"The operation could not be completed" error when starting VS 2013 (premium)

Question

It was running fine and then msbuild wouldn't stop so I had to kill VS. After that I get the above error every time I try to start VS.
Same result with the various console invocation devenv options (/safemode, /resetuser, ...)
My path is < 2048 chars. I've also re-registered actxprxy.dll and oleaut32.dll to no avail.
I've run the VS2013 repair a couple times, no errors reported but I still get the error.
Errors in the activity.xml log file are:
<entry>
<record>28</record>
<time>2015/02/13 18:54:31.800</time>
<type>Error</type>
<source>VisualStudio</source>
<description>SetSite failed for package [Task Scheduler Package]</description>
<guid>{00CD9DDA-7350-457C-A240-71BD667FC4DE}</guid>
<hr>80131534</hr>
<errorinfo>The type initializer for 'Microsoft.VisualStudio.ErrorHandler' threw an exception.</errorinfo>
</entry>
<entry>
<record>29</record>
<time>2015/02/13 18:54:31.800</time>
<type>Error</type>
<source>VisualStudio</source>
<description>End package load [Task Scheduler Package]</description>
<guid>{00CD9DDA-7350-457C-A240-71BD667FC4DE}</guid>
<hr>80131534</hr>
<errorinfo>The type initializer for 'Microsoft.VisualStudio.ErrorHandler' threw an exception.</errorinfo>
</entry>
and
<entry>
<record>32</record>
<time>2015/02/13 18:54:31.810</time>
<type>Error</type>
<source>VisualStudio</source>
<description>SetSite failed for package [Environment Package Window Management]</description>
<guid>{5E56B3DB-7964-4588-8D49-D3523AB7BDB9}</guid>
<hr>80131534</hr>
<errorinfo>The type initializer for 'Microsoft.VisualStudio.ErrorHandler' threw an exception.</errorinfo>
</entry>
<entry>
<record>33</record>
<time>2015/02/13 18:54:31.810</time>
<type>Error</type>
<source>VisualStudio</source>
<description>End package load [Environment Package Window Management]</description>
<guid>{5E56B3DB-7964-4588-8D49-D3523AB7BDB9}</guid>
<hr>80131534</hr>
<errorinfo>The type initializer for 'Microsoft.VisualStudio.ErrorHandler' threw an exception.</errorinfo>
</entry>

Answer 1

Hello Charlie,
Based on the error info, 'Microsoft.VisualStudio.ErrorHandler' is used as "Provides methods for dealing with common COM error codes". Some components send this error out but I seems cannot find the info about the specific component. Do you have
any more error info in your ActivityLog.xml log?
If you do not have any info, we may need to use process monitor tool:
https://technet.microsoft.com/en-us/sysinternals/bb896645.aspx
Please open this tool and then open Visual Studio to reproduce the error.
After that, please filter the Visual Studio related process and upload the log to OneDrive and share the file to here.
I think it will contains some info about the specific corrupt dll or any com components. Then we can try register it again.
By the way, may I ask why you register actxprxy.dll and oleaut32.dll here? Do you have any error info about them?
Best regards,
Barry
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