Pointers to be looking for
1.The bus connecting the hard disk to the mother board is faulty.
2.The master boot record (MBR) on the hard disk got corrupted.
3.SMPS (Switch Mode Power Supply) failure. In this case, your computer may not boot at all. But there are times when only one of the power plugs may fail.
If anyone has encountered any other points of failure, please follow this solutions provided below.
Solution 1. Reconnect hard disk drive (HDD) or solid state drive (SSD)
Solution 2. Recover Master Boot Record (MBR)
Solution 3. Check Hard Disk Drive (HDD)
Solution 4. Replace the Hard Disk Drive (HDD)/ Solid State Drive (SSD) and Install Windows