A bulging disc can occur in the neck (cervical region), lower back (lumbar region) or, less commonly, in the mid-back (thoracic spine). Bulging discs usually remain asymptomatic unless they compress a spinal nerve rootlet or the spinal cord itself.
protected mode. Protected mode is a mode of program operation in a computer with an Intel-based microprocessor in which the program is restricted to addressing a specific contiguous area of 640 kilobytes. Intel's original PC microprocessor, the 8088, provided a one megabyte (1 Mbyte) random access memory (RAM).
Safe mode was basically introduced by microsoft to help users in troubleshooting any problem in windows as in this mode minimal set of drivers and programs are loaded into windows startup. Hence allowing you to check which softwares or drivers are affecting your system.