i m trying to install full Europe ntu 2018.20
but i can choose region only till 3.99 gb and the whole map region is 4.2 gb and an error come
all of your maps will not fit in memory card c
though i have 170 gb free
tried d: also same error but if i delete parts till its 3.99 gb it works perfect
any advise how to install full map region
thanks