target: window
case1:
1.Find unity install path

path
2. open unity, click Help-->Manage License, you will see window like below

license
3. chose manual activation to reload you license

load
5. restart your unity
target: window
case1:
1.Find unity install path
2. open unity, click Help-->Manage License, you will see window like below
3. chose manual activation to reload you license
5. restart your unity