Visual studio 2015, can´t add new projects

I have VS 2013 installed and works well, and about one week i have installed VS2015 Pro. Now when try add a new project, nothing appears in project selection (like image attached).
However already completely uninstalled VS and has reinstalled with administrator permissions. And made a new download and installed again but the problem remains.

best regards
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Kyle AbrahamsSenior .Net DeveloperCommented:
Did you try changing the .Net version?  (Top left dropdown)
Also ensure you're running VS as an administrator.
rflorencioAuthor Commented:

Both things.
Kyle AbrahamsSenior .Net DeveloperCommented:
Was this an existing solution that you're working in or a brand new one from 2015?  If you just start a blank solution, do you get the same thing?  Trying to narrow down what's actually going on.
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rflorencioAuthor Commented:
In a new solution show the screen attached.
If try open a solution, an error appears in solution explorer:

An exception was encountered while constructing the content of this frame.  This information is also logged in "C:\Users\rui\AppData\Roaming\Microsoft\VisualStudio\14.0\ActivityLog.xml".

Exception details:
System.NullReferenceException: Object reference not set to an instance of an object.
   at Microsoft.VisualStudio.ExtensionManager.CachedInstalledExtensionList.SynchronizeAutoUpdateInformationWithUserStore(ExtensionSettingsStoreList autoUpdateList, IReadOnlyDictionary`2 entryDictionary, IList`1 deletedExtensions, IList`1[] installedExtensions)
   at Microsoft.VisualStudio.ExtensionManager.CachedInstalledExtensionList.StopScan(Int64 timestamp, ExtensionSettingsStoreList autoUpdateList)
   at Microsoft.VisualStudio.ExtensionManager.ExtensionManagerService.InitializeList(CachedInstalledExtensionList cachedExtensionsList, IEnumerable`1 enabledExtensions, Boolean safeMode, Boolean isSdkList)
   at Microsoft.VisualStudio.ExtensionManager.ExtensionManagerService.InstalledExtensionListData.<>c__DisplayClass19_0.<CreateExtensionListData>b__2()
   at System.Lazy`1.CreateValue()
--- End of stack trace from previous location where exception was thrown ---
Kyle AbrahamsSenior .Net DeveloperCommented:
You might have an incompatible extension:

from here:

The support guy there keeps on reference the powerhshell extension but any might do it.  Telerik?  DevExpress?

Try running vs in safe mode and see if you get the error?

Also if you were on the RC from the same link:
Take a backup of your registry
Then under both HKLM and HKCU remove all the 14.0 registry key for Visual Studio (14 is VS 2015).  There were 3 for me - 14.0, 14.0_Config and 14.0_Remote.  I removed them all under both those hives.
Programs and featues - double click on VS 2015 (for me it was enterprise)
When prompted to Modify/Repair/Uninstall - choose Repair.  
Let it finish
Was able to successfully use Visual Studio 2015.  So far most things work - no extension errors.  Havent tried every feature in VS but seems to load and work without errors.

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rflorencioAuthor Commented:
Thanks kyle. In fact is an incompatible extension.
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