Android Phone taking up more space than it should I have a relatively new HTC ONE M8 running Android 5.0.1 (according to the settings page). 

The phone is supposed to have 10.5 GB space according to Windows, but at the moment only 945 MB is free (again, according to Windows). However, when I select all of my files within and check properties it shows that they all take up only 5 GB of space, meaning another 4-5ish has disappeared. Any ideas how to fix this, as I'm trying to free up space for more music and pictures?





Screenshots from DiskInfo and DiskUsage:
Theres a few problems it could be (or a combination of):
1. The stock software is massively huge and htc has a problem that an update will fix.
2. An app youve downloaded has installed Bloatware and clogged up your storage
3. An app youve downloaded assumed you wanted to download other things (photos videos ect) without telling you

Id advise

https://play.google.com/store/apps/details?id=com.mobile_infographics_tools.mydrive

To determine exactly what it is that is taking all that space. Happy hunting!