Joined Wireless Automatically

[Windows Expat]

I just installed a new SSD drive in my MacBook. As it was installing the OS, I noticed it was already online! How could it have joined my wireless network without my even entering the password? I was installing from a bootable disc for the record.

Main reason I care is because I want this to be a fresh install. Hoping some old crud didn't come along for the ride somehow!

 

[ApolloBoy]

The settings for your wireless network are actually saved in PRAM and not on your hard drive, which is why your Mac remembered your network even though you did a drive swap.

 

[Windows Expat]

The settings for your wireless network are actually saved in PRAM and not on your hard drive, which is why your Mac remembered your network even though you did a drive swap.

Aha! Thank you. Will do a pram reset for maximum cleanliness
Thanks!