"Either there is no default mail client" error in Excel Office 365

I am getting the "General Mail failure" error when I try to send an attachment e-mail through Excel.
I installed another mail client and it works when I use the other mail client.
I tried the following:
- Ensured Outlook was set as the default mail client
- Did a Quick Repair
- Disabled Cortana
- Uninstalled the 64-bit version and installed the 32-bit version
- I used the Microsoft Support Assistant tool to completely remove Office 365 and reinstalled it
- I used CCleaner to clean up the registry
- I tried to edit the following Registry: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Messaging Subsystem\MSMapiApps
According to the solution, there should be a Version REG_SZ file and I should rename it to Version_Renamed. I can't find the file under the subkey MSMapiApps
- The other solution is to delete the MAPI file under Program Files Common Files, but there is no file to delete it
- I have attached the logs from Microsoft Assistant.