The iSchool has BitLocker configured on all Faculty, Staff, and PhD student Windows computers. BitLocker is a Microsoft disk encryption technology. Once BitLocker is turned on, your UW NetID credentials will continue to allow you to sign into the computer; you should see no noticeable change in behavior.
If you are ever prompted for a BitLocker Recovery Key, please contact the iSchool IT Help Desk.
More about BitLocker can be found at the websites below.
https://docs.microsoft.com/en-us/windows/device-security/bitlocker/bitlocker-overview
https://en.wikipedia.org/wiki/BitLocker