How do I change the default picture in Windows 10?
How do I change my default account picture in Windows 10?
Open the Settings app. Go to Accounts -> Your Account and select the Browse option under your current user avatar. In the Open window that appears on the screen, type C:\ProgramData\Microsoft\User Account Pictures in the address bar.
How do I change my default profile picture?
Open the Group Policy editor and go to “Computer Configuration -> Administrative Templates -> Control Panel -> User Accounts.” double-click on the “Apply the default account picture to all users” policy in the right panel.
How do I change my default JPEG?
Then, under Default Programs in the Control Panel, select Open. Select Associate a file type or protocol with a program from the drop-down menu. Select jpg as the extension and then choose Change Program from the drop-down menu in the upper left corner of the page.