[AC Question]

please tell me how to transfer contacts from my samsung galaxy grand duos to laptop

[B. Diddy]

Welcome to Android Central! What account are the contacts on the phone associated with? Your Google account, or the Phone account? If it's your Google account, then that's easy--they should sync automatically to Google, and be immediately available on your laptop browser at google.com/contacts.

If the contacts are on the Phone account, then you need to tap the Menu button, then find the Export option. Export all of the contacts to a .csv or multiple .vcf file. You can then transfer that file to the laptop via USB connection or by uploading the file to Google Drive, then downloading it on your laptop from the Google Drive website. Now import that file into your Google Contacts, or whatever contact program you use on the laptop (like Outlook).