QUES: Cancellations later than 0 days before arriaval will be charged the deposit price of the first night

correct the punctuation.

CORRECTED: Cancellations later than 0 days before arriaval will be charged the deposit + price of the first night.

QUES: creating slide menu on web pages

correct the punctuation.

CORRECTED: creating slide menu on web pages.

QUES: You now have a backup of your ERROR_NOT_ENOUGH_MEMORYrelated registry entry

correct the punctuation.

CORRECTED:
You now have a backup of your ERROR_NOT_ENOUGH_MEMORY-related registry entry.