QUES: Whenever I try to open presentation on Microsoft PowerPoint it encounters an error message Microsoft PowerPoint has stopped working on my laptop I have tried to run it in safe mode but the same error message is encountered

correct the punctuation.

CORRECTED: Whenever I try to open presentation on Microsoft PowerPoint it encounters an error message 'Microsoft PowerPoint has stopped working' on my laptop. I have tried to run it in safe mode, but the same error message is encountered.

QUES: The evening will be at your own disposal dinner will be served in the hotel

correct the punctuation.

CORRECTED: The evening will be at your own disposal; dinner will be served in the hotel.

QUES: CG Invoicer generates an invoice with the click of a button and keeps them for later reference so you will always be on top of your outstanding invoices

correct the punctuation.

CORRECTED:
CG Invoicer generates an invoice with the click of a button and keeps them for later reference, so you will always be on top of your outstanding invoices.