trying to free up storage space on my nokia lumia 635 phone

[Windows Central Question]

about 90% of my phones storage is used even though I have none of my apps, music , videos, podcasts , photos , documents , downloads or maps stored there .
There are 2.94 GB 's of something in a folder called 'OTHER" and I can't access it to delete or review any of its content
Please help me in deciding if it's okay for me to reset my phone

 

[Chintan Gohel]

about 90% of my phones storage is used even though I have none of my apps, music , videos, podcasts , photos , documents , downloads or maps stored there .
There are 2.94 GB 's of something in a folder called 'OTHER" and I can't access it to delete or review any of its content
Please help me in deciding if it's okay for me to reset my phone

check to see if facebook or instaram or whatsapp is using a lot of storage