1. While the installed is stuck, try coping the files that has been created under \telerik\Sitefinity3.7\
to another location. Then cancel the installation. Move the above folders back to Sitefintiy3.7 folder( if it has been deleted, recreate it). Open IIS, create a virtual directory manually and point it to C:\Program Files\Telerik\Sitefinity3.7\ProjectManager
folder. Then run the 'website' and this should open the project manager.
2.. You could try using a blank project installation
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