QUESTION: Fix punctuation: Its not a question of one or the other
ANS: It's not a question of one or the other.

QUESTION: Fix punctuation: The Action Center displays notifications to the user including new Windows Store apps that were installed on the system information about new emails and messages that you have received notifications about updates and Calendar events to name a few
ANS: The Action Center displays notifications to the user including new Windows Store apps that were installed on the system, information about new emails and messages that you have received, notifications about updates and Calendar events to name a few.

QUESTION: Fix punctuation: Their is a charge of the usual environmental supplement surcharge of 395 of the total bill
ANS: Their is a charge of the usual environmental supplement surcharge of 3.95% of the total bill.

QUESTION: Fix punctuation: Lions has received many awards for his outstanding contributions to mathematics
ANS:
Lions has received many awards for his outstanding contributions to mathematics.