The most common is of course damaged or corrupted application/installer.
REPORTED ERRORS:
Some people get no response when pressing and holding the /"OPTION/" key, this could mean that the USB drive is not being read correctly by the Mac. A few people said the installer file said it was damaged, again it could be the USB drive. I had to try 2 different USB drives to get the Mac to work.
In case you receive an error message *THIS COPY OF MACOS HIGH SIERRA IS DAMAGED* It means you are using an older (2011-12) or older MacBook. Which means when the MacBook tried to connect to Apple servers, there is no active certificate or it is shown as expired. So in this case you need to turn off WIFI, go to Internet Recovery, open the terminal and set the date to:
1112131416
November 12, 1:14 p.m., 2016
MM/DD/HH/MM/YY
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This method worked for me.
Setting the date manually should work for most people. This forces Apple servers to contact the MacBook and restore it.
Another solution is to repair the physical hard drive cable if your MacBook does NOT recognize the hard drive/SSD. This is mainly related to the white folder with a question mark because Mac is IMPOSSIBLE to find an installed operating system.
The latest fix is the installer stuck on the progress bar.
1. Turn on Mac and hold down CMDR keys to boot into recovery mode.
2. Select the Utilities menu at the top of the screen and go to Terminal
3. Enter these two commands
cd /Volumes/Macintosh// HD/var/db/caches/opendirectory
mv ./mbr_cache ./mbr_cache-old
4. Exit and restart
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