Windows 10 version 2004 was released on May 27 with WSL 2,
Cloud Download, and several other improvements to the
underlying code. Unfortunately, the May 2020 update also
brought with it some issues, including one bug that hits you
right in the storage drive.
Like Windows 8 and Windows 7, Windows 10 also comes with a disk
optimization tool that automatically defragments files for
you on a schedule. By default, Disk Optimizer tool is scheduled
to optimize your storage drives once a week.
When the optimization/defragmentation process is complete, the
time in the Last Run column in “Optimize Drives” tool will
update. Current Status will read something similar to “OK (0
days since the last run).”
Windows 10 May 2020 Update, Microsoft’s Drive Optimizer
tool (also known as Disk Defragmenter) is behaving weirdly for
all users. According to
our tests and user reports, Drive Optimizer is unable to
report the correct status when the disks were last optimized.
If you look at the app to check the “Last Run” column, you may
notice that no scans were done and Windows could even warn you
that your drives need optimization, even when they were
The company was made aware of issues with drive optimization
tool during the beta testing of a future Windows 10 update.
This issue reportedly slipped through the production build and
Microsoft is now planning to fix it in the next optional
In a statement to Windows Latest, Microsoft confirmed that May
2020 Update has caused issues with the built-in Drive Optimizer
At the moment, it appears that the fix could be included in
August optional update, also known as “C” preview release. This
month’s optional update is expected to arrive in the third week
Internally, the optional updates are known as the ‘C’ release
(C for the third week of the month), while Patch Tuesday
updates are known as the B release because they arrive in the
second week of the month.
The ‘C’ optional update for Windows 10 includes the
non-security fixes that will be included in the following B
release. If you skip the optional update, which is expected to
arrive on Tuesday, you can still get the fixed drive
optimization tool with September Patch Tuesday update.