What's the difference between Safe mode and Normal mode?
There are multiple differences between the Safe mode and the Normal mode. First, Safe mode only loads services and drivers essential for the principal function of the computer. Second, it doesn't run the autoexec.bat and config.sys files. Lastly, Windows enters safe mode from the batch file system.cb rather than the regular system.ini file. This enables your PC to connect to system hardware through Virtual Device Drivers.