why does my system memory keep on piling up?

[Windows Central Question]

My phone is Lumia 540 running Windows 8.1, recently it's system memory has risen rapidly from it's normal levels of less than 4.5 GB to 6.35 GB currently.
I can't even access my WhatsApp because phone's free memory is now less than 50 MB
Please help me out, this problem costs me a lot

 

[Chintan Gohel]

My phone is Lumia 540 running Windows 8.1, recently it's system memory has risen rapidly from it's normal levels of less than 4.5 GB to 6.35 GB currently.
I can't even access my WhatsApp because phone's free memory is now less than 50 MB
Please help me out, this problem costs me a lot

the only way to resolve this would be to do a factory reset

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