Changing System Password

[Coriel-11]

My (Win10) system password expires in a few days. Last time I changed it, I then had to spend a long time going through all my .pbix reports individually and re-entering credentials, as most of them draw on one or more OneDrive/SharePoint files/folders. As I have about 50 (and counting) different Power BI reports this quite a task that will need repeating again this time and then every time after this that I need to change my password.

I was wondering if anyone had any useful ideas about how to avoid this, or at least shorten the process.

I don't have a good grasp on system connections & how Power BI connects with and gains the appropriate approvals and credentials to pull the data from Sharepoint/OneDrive. Does anyone have any ideas/tips, that means longer term changing my (indidivual) system password won't cause me such a headache? PBI service seems a little more straightforward, than the destop files which are my main concern,but any ideas/tips for either/both would be really helpful.

Thank you.

Matt

[amitchandak]

@Coriel-11 , Have tried changing the datasource connection, global setting

under home tab -> Data transformation -> Datasource setting -> global setting tab

[Coriel-11]

Thanks for your answer @amitchandak. 
Do I not still need to do this for each & every .pbix file or have I got the wrong end of the stick?
All the best,
Coriel-11