Windows 10: Windows System and reserved files are taking up to 395 GB

Previously I had windows 8.1 in my hp laptop. When I installed windows 10 pro on in it, the windows files started taking about 395 GB. I don't know which file is taking so much storage.


Please help me to fix this issue.

Thank you

:)

 

system and reserve files taking too much space

My system and reserve files are taking up 105 of the 119 GB available - what can I do about this. I have been running this system for about 4 years and this problem only just started happening a few months ago - I have followed all the steps of cleaning
and optimizing storage

 

System and Reserve taking about 150 GB of Space

I just uninstalled and reinstalled Windows 10 on a new SurfacePro. There's only two applications reinstalled and 0 files. The System and Reserve are taking about 150 GB of space. Something seems wrong.

Normally, I'm an Apple user. But I need this device to work with Zoom for my classes.

 

Recovery Partition vs System Reserved Partition

Thanks for all the info guys.

Both original & target SSD's are listed as MBR as opposed to UEFI. I may have created a partition unknowingly in getting the original/new unformatted drive recognized, but I don't recall taking any steps that Windows did not step me through.

Not that an upgrade to WIN 10 Pro is contemplated, but I suspect that having no System Reserved partition will not allow that to happen, after seeing how the original WIN 10 upgrade created a problem for some WIN 7 users that had a smaller 100mb vs 500mb System Reserved partition.