After users updated the game League of Legends to a new version (October 23 - 24), in many cases, it was impossible to log into the computer. So where is the reason? Why is there such an error? How to prepare?
The cause was initially determined to be due to the new update having a gaprotect.sys file that caused a conflict with the operating system. Therefore, it is necessary to immediately delete this file, instead of having to reinstall Windows:
How to fix Windows not start error after updating League of Legends
If you've finished updating League of Legends but haven't got the error, you can access the folder C: \ windows \ system32 \ drivers , press Ctrl + F to find and delete the gaprotect.sys file .
If the computer cannot boot successfully, continue:
For Windows 7 / XP:
Step 1: Reboot the computer, and simultaneously press F8 to enter Advanced Boot Options. Select Safe Mode to access safe mode.
Step 2: Then, select Disable Driver Signature Enforcement.
For Windows 8/10:
Step 1: Hold down the Shift key continuously when restarting the machine. After entering the Recovery menu , select Advanced Boot Options> Troubleshoot.
Step 2: Next, click Advanced Options , select Startup Settings.
Step 3: Next, Restart the computer.
Step 4: After restarting the computer, this table will appear, press F4 to enter Safe Mode.
Step 5: After entering Windows in Safe Mode, access the folder C: \ windows \ system32 \ drivers and delete gaprotect.sys.
Alternatively, you can update the League of Legends patch, but not Windows 10 patch 1709 if you still want to play the game.
Wish you all success!