Deauthorisation of Macbook on boot | Macbook wipe and re-installation of OSX | TSplicedFont failed creating descriptor for

Whenever you will get an error "Contact Apple Care" on reinstalling OSX. Then, you need to deauthorize apple account from machine either via manually logout from iTunes + App Store account OR may use below approach if you are lazy to do with first approach :)

1. Go to /Library/Preferences/
2. Find all plists which are having com.apple.security.<>
3. Replace its contents with an empty string
    cat /dev/null > com.apple.security.<>

Now Quit terminal and reinstall OSX again.


Whenever you will get below error in InstallerLog, while reinstalling OSX, I would suggest you ignore this error and move on, this will download it and install but it will take long hours (let's have some other work during this). If you are impatient and can't wait for long hours and obviously want to fix it manually then please go through https://discussions.apple.com/thread/7263067?tstart=0

Chooser[438:7016] TSplicedFont failed creating descriptor for:
MacBook-Pro Unknown[439]: (
MacBook-Pro Unknown[439]: {
MacBook-Pro Unknown[439]: UnicodeRange = "<__nscfcharacterset: 0x7fe26c5d3940="">";
MacBook-Pro Unknown[439]: name = NotoSansBuhid;
MacBook-Pro Unknown[439]: },
MacBook-Pro Unknown[439]: {
MacBook-Pro Unknown[439]: UnicodeRange = "<__nscfcharacterset: 0x7fe26c5d39f0="">";
MacBook-Pro Unknown[439]: name = NotoSansHanunoo;