Note:
Dynamics CRM 2013 Developer Toolkit runs on VS 2012 only. if you want to update to VS 2015, you need to upgrade your CRM developer toolkit that runs on both version.
Step 1) Uninstall the previous version of CRM Developer Toolkit if any
Dynamics CRM 2013 Developer Toolkit runs on VS 2012 only. if you want to update to VS 2015, you need to upgrade your CRM developer toolkit that runs on both version.
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