MacOs High Sierra installation


i own macbook pro 2011 edition os x el capitan 10.11.6 , have tried thousand times upgrade high sierra in spite of updating kept getting error message 8minutes remaining when start download store , carry on hours on end chewing data on 30 gb without progressing. have done possibly within power no avail.please me.
 

so download of "install macos high sierra" application isn't complete? mine's 5.18 gb.
 


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