Windows 10: Creating/Finding Available Disk Space To Go Back To A Previous Version Of Windows 10

I would like to ask for some assistance with reinstalling an older version of Windows onto a laptop I've been borrowing for the past couple of years. Disk space issues are currently making it difficult.To start from the beginning, about two weeks ago now, I had an error occur that caused a display issue with the original version of the operating system, which can be seen in the photographs below.To make a long story as short as possible, I attempted some troubleshooting methods found online to correct this problem, but once those didn't achieve the desired effects, I followed another suggestio

:)

 

erase previous version of windows to create space

Perform the steps to delete previous version of windows :-

• 
  In the search box on the taskbar, type settings, then choose it from the list of results.
  
• 
  Select System > Storage > This PC and then scroll down the list and choose Temporary file
  
• Under Remove temporary files, select the Previous version of Windows check box and then choose Remove files.

 

Disk bloat in Windows 10 Fall Creators Update

Is it my imagination, or does the Windows 10 Fall Creators Update consume an additional 20-30GB of disk space over the previous Creators Update release? Unfortunately, I didn't log my disk usage before the upgrade, but now my C: drive has 56GB of stuff, and I know it wasn't anywhere near that full before. I've run "Disk Cleanup -> Clean up system files" and selected everything on the list, including remove previous version of Windows. I also emptied my Recycle Bin, my Temp folder, \Windows\Temp folder, and \Windows\SoftwareDistribution\Download folder. Finally, I ran Wise Disk Cleaner to delete assorted application garbage.

Has anyone else noticed the bloat in Fall Creators Update?

 

Question on disk space avail RAID 0


To update everyone on the conclusion, I successfully converted the RAID0 array to GPT! These were the steps I did:

1. Backed up image of the drive (it was my bootable C: drive) with Macrium.
1a. Changed BIOS boot options setting from legacy boot option to UEFI with hybrid with CSM
2. Booted with Macrium rescue image (note I had not updated by rescue USB, it was older and under "fix boot problems" only had Windows 8 but this all worked. I have since updated it to the latest, supporting Windows 10.)
3. Go into diskpart, clean the drive, convert to GPT, create the efi and msr partitions: the commands in diskpart -
list disk (find which disk is the one you are working on)
select disk xx
clean
convert gpt
create partition efi size=200
format fs=fat32
create partition msr size=128
exit
4. Close the command window, then use Macrium on the rescue disk boot to restore just the volume with my data out of the image, onto the unallocated space of the drive. Be sure to expand the sliders to take up the whole space in this partition. Then let it restore.
5. At this point, I did "Fix boot problems", rebooted, and it could not find the disk. Not sure why, I did the "Fix boot problems" again, rebooted, and it worked fine! All the data was there and Windows 10 came up fine, I verified in diskpart the drive was GPT plus the space was now 3.72 TB available, not 2 TB.
6. Changed boot options in BIOS to UEFI without CSM, and verified system and rescue disk still booted. I did this step with the newly updated Macrium Rescue image USB drive, full support of Windows 10.

My only question - in step 6, once I changed the boot option to UEFI without CSM, the rescue disk takes about 3 minutes to boot - the light blinks the whole time, but it does come up fine eventually. Before, the rescue disk would boot up in about 20 seconds or so. Same USB drive, same port. Why is that?

Thanks for everyone's help, and I hope my notes help someone else out!