The savegames are located in the Public profile folder which is located in the following C:\Users\[windows username]\AppData\Local\Larian Studios\Baldur's Gate 3\PlayerProfiles\Public\Savegames\Story.
The AppData folder is hidden by default so to see it you’ll have to change the windows explorer settings to show hidden folders. An easier way to get there would also be to copy %LocalAppData%\Larian Studios\Baldur's Gate 3\PlayerProfiles\Public\Savegames\Story into the location bar in Explorer and hit Enter.
It might depend on what permissions you have on your laptop, as you might not be able to access these folders, but hopefully you can get there and copy your saves!
