I do not believe this problem will be fixed by Microsoft.
I think the best practice would be to do what the last poster suggests, and then wait about 2-3 minutes for the hard drive to go down to a proper level, mine actually goes down even to below 10% after a few minutes.
Windows 10 has been made by Microsoft for Solid State Drives, (SSD). These are used in cellphones, however, very few Laptops, All-In-Ones, Towers, etc., with larger hard drive, come with SSD. That is due to the price of SSD when they are over 256 GB.
Will the regular Hard Drives with the slower RPM's than an SSD wear out sooner due to this problem?
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Well I have an SSD on my system....the problem is not occasional operation at 100% disk activity (I see that at most startups) The problem is the system hangs and "windows not responding is displayed". When this happens the disk shows it is 100% active but there is no evidence of any disk activity. The problem does not go away if you just let it sit (anyway not in 8hrs) the fact that the laptop stays cool is also an indication that it isn't doing anything. Hard power off is required.