Solved! iam using hp laptop...when i was partitioning my memory space i may made some mistakes ...after its offed and when i turn on,

[kiranmallanb123]

iam using hp laptop...when i was partitioning my memory space i may made some mistakes ...after its offed and when i turn on, no boot setting and not entering into window
What is reason

 

[rgd1101]

iam using hp laptop...when i was partitioning my memory space i may made some mistakes ...after its offed and when i turn on, no boot setting and not entering into window
What is reason

The reason is you mess up the partition.