Hi Acacio Melo,
Could you please tell me what's the version of your Visual Studio?
Please restart your machine, disable the anti-virus software and firewall and run your Visual Studio as administrator.
Also try running your Visual Studio in Safe mode to Check whether some add-ins and extensions affect it (devenv /safemode)
If above suggestion still no help. Please try to repair your Visual Studio or install the latest update of Visual Studio.
If the problem still exists after that. I think there might be something wrong with your Visual Studio installation. I need you installation log file to troubleshoot this issue.
please use http://aka.ms/vscollect to gather the installation logs. After using it, you will find vslogs.cab from %temp% folder. Please upload the file to
https://onedrive.live.com/and share the link here.
Best Regards,
Lake Xiao