A link to the original post would be helpful as would your operating system and what are you using to extend the partition. I have found that using Paragon Partition Manager is a simple piece of software to do what you want.
What is ransomware and how do I protect my PC from WannaCry?
Disney layout supervisor Rob Dressel on the challenges of visualising Moana
Siri vs Google Assistant
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.