Text: get an instant performance boost!

Correct capitalization: Get an instant performance boost!

Text: did someone email you a usr file and you're not sure how to open it? maybe you have found a usr file on your computer and wondering what it's for? windows might tell you that you can't open it, or in the worst case, you might encounter a usr file related error message.

Correct capitalization: Did someone email you a USR file and you're not sure how to open it? Maybe you have found a USR file on your computer and wondering what it's for? Windows might tell you that you can't open it, or in the worst case, you might encounter a USR file related error message.

Text: the first dish is pasta and the second pork roast with mashed potatoes and green beans. dessert is a caramel pudding.

Correct capitalization: The first dish is pasta and the second pork roast with mashed potatoes and green beans. Dessert is a caramel pudding.

Text: use the find and replace feature to make quick and accurate updates.

Correct capitalization:
Use the find and replace feature to make quick and accurate updates.