Sign in to OneDrive on your device
Open the OneDrive app or website
Make sure you are connected to the internet
Turn on sync for the folders you want
Choose the files and folders to sync
Save your changes
Wait for the sync to complete
Check the sync status in the OneDrive app
Resolve any sync errors if they appear
Keep OneDrive running in the background
Update the OneDrive app if needed
Restart OneDrive if syncing stops
Reconnect your account if sign-in is required