When you use Tools – Attach to Process, you’ll see the Modules window pop up. From here you can right-click and choose “Load Symbols”

Load Symbols from Modules window

From here the Find Symbols dialog box pops up, asking you to provide the location of the .pdb file. Actually, you only need to provide the folder location. As soon as Visual Studio sees the .pdb file, it’ll automatically grab it from you in the dialog.

Symbols loaded in the modules window

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