After releasing of new Mac OS a huge amount of users update their Mac and due to that the servers are over burden due to congestion in traffic. Due to congestion of traffic users will consume lots of data but the download is still remaining its under download and that to will consume lots of time, this situation can be avoided when you try to download Mac OS using an external link.
If you are not able to reinstall Mac OS Sierra you are required to read How to reinstall mac OS Sierra without Losing Data. But if you want to download Mac OS without using Apple store you can read steps explained by experts and on executing them very carefully and update Mac OS sierra without app store. Make sure after downloading while installing local hot must be used at place of downloading location would be changed from swcdn.apple.com to 127.0.0.1 used by local host to search for file on the drive in computer.
Step1: Clean junk in the disc installed on the Mac.
Step2: Now browse third party sites or visit Mac official site.
Step3: Navigate to download section of the sites and search for the operating system you want to download.
Step4: The only difference between official and third party sites is official offer Operating system after subscription.
Step5: You have to make sure that while downloading OS from official site you must have developer id logged in to your account.
Step6: Generally direct download will save file in .pkg format and must be converted to .app format.
Dial 24*7 toll free number available for customers to get round the clock support from Apple Mac OS x sierra support number to get instant online help. The certified team of technical experts is here to provide solution to fix issues while downloading mac operating system toll free +1-888-488-2930 to get support in USA and Canada.