Managing files is easy if your Windows files and your personal files are apart, have you tried separating them by partitioning your storage devices?
Here are the step-by-step on shrinking your hard drive for you to separate your Windows files to other stuff.
We recommend you to check if the hard drive capacity has enough space for creating partitions, Windows files need at least ~20Gb of storage capacity for Windows 10 operating system. For instance; if your storage is almost full, you should back up (cut) your personal files to an external hard drive(s) or flash drive(s) before proceeding and transfer it to other partition later on.
Go to Control Panel > System and Security then find Create and format hard disk partitions.
Next is to select the Hard Drive primary partition that you’re going to partition then click ‘Shrink Volume’.
Enter the amount of space to shrink (in Megabytes/MB).
Simple Tip: For 500Gb hard drive, make at least ~200Gb of main storage (Windows files & Programs) and ~300Gb to be shrink.
The partition is ‘Unallocated’ once succeeded, right click on the shrink-ed partition and click ‘New Simple Volume’ for you to be able to use the ‘Unallocated’ storage.
This volume wizard window will turn ‘Unallocated’ storage into file system format drive. We recommend to use the maximum disk space of the volume wizard shown. Just click ‘Next’ to proceed.
The volume wizard window shows that the ‘Unallocated’ storage will be formatted to ‘NTFS’ or NT File System, Just click ‘Next’ to proceed.
Once completed, click the ‘Finish’ button and you’ll see the partition on your Hard Drive.
So open your File Explorer > This PC or Ctrl+E and see if there’s another volume storage.
Now your Windows files will be on primary storage while the separated volume will be good for storing your installers & personal files.