Hi, Thanks to both the above for your replies.
Prior to installing Parallels VM, I had approximately 45-50GB of free Space. "other" files were already showing at around 50GB. When installed Parallels used 35GB, which is what is now showing as usage. So the "other" files does not included Parallels, "Other" files did not increase, or decrease after Parallels was installed.
The MacOS system uses 15GB, all my other files are kept in the cloud to save space, and both iCloud and Onedrive combined only use about 4GB of space on the hard drive.
I just do not understand what could be using the 48GB ?
A couple of months ago I had the same problem and did a complete wipe of the hard drive, re-installed all applications and and necessary files. Essentially I put back on the same files I had before the hard drive wipe, and ended with 60GB of free space and "Other" files showed as using around 4GB.
Without installing any new applications and using cloud storage for all new files, "Other" files for some reason increased to 48GB.. ?? This is what I do not understand. What has occupied approximately the 45GB ?
Apple..
"You can't manage the contents of this category. The contents are managed by macOS, and the category varies in size depending on the current state of your Mac."
If I cannot manage "Other" Files and it is managed by the MacOS, it seems to me that MacOS is not doing a very good job. The MacBook runs well, and seems as fast as the day I purchased it. It also ran very well on regaining 40GB+ after the Hard drive wipe.
I just do not understand that if managed by MacOS why has "Other" files increased by 45GB with no files added by myself ?
Confused :(
P.S. I followed the Spotlight suggestion and nothing has changed.