After the test, you may cancel your scores immediately after completing the test, while still in the testing room. However, once you request an unofficial score report (immediately after the test), you no longer have the option of canceling your scores. More about GMAT scores:
How many times should you take the GMAT? More than once, if you didn't ace it on the first try. But watch out: Multiple scores that fall in the same range make you look unprepared. Don't take the test more than once if you don't expect a decent increase, and don't even think of taking it the first time without serious preparation. Two tries is best. Three, if there were unusual circumstances or if you really need another shot at it. If you take it more than three times, the admissions committee will think you have an unhealthy obsession with filling in dots. A final note: if you submit more than once score, most schools will take the highest.
I am planning to give GRE this September and is going to try for germany September 2018 intake as I can’t afford USA. I will be completing 4 years as working IT professional this coming October and my grad/engineering Computer science percentage is 65. I have two queries if you could please provide a professional advice that would be very helpful for me as my thoughts are oscillating between these two queries day and night. 1) Does a good GRE score will help me in overlooking my low grad percentage. (2)Whether work experience more than 5 years affects in admission in ms programmes in case I take one more year and learn german language and then decides to apply for 2019 intake.