macOS quick-fire questions

Does Sierra no longer support PPTP VPN?

> Apple decided that PPTP protocols are too insecure to support any longer and has removed them from Sierra. If you are unable to switch to a support protocol, such as IPSec, or use an SSL client, there are many apps which still support PPTP, including Aruba, OpenVPN and Shimo.

Why does Sierra’s storage summary never complete?

> In Sierra, the bar shown on your startup disk in  > About This Mac > Storage should give a breakdown of free and used space. On some Macs running 10.12, the assessment never completes and the bar continues to say ‘Calculating’. This bug should soon be fixed; try installing the recent macOS 10.12.1 update.