Windows 10 KB4586781 fails to install and causes other bugs

Windows 10 KB4586781 issues

Windows 10 KB4586781, which was released in the second week of
November, appears to be a fairly stable release when compared
to older updates but it’s also plagued with installation
issues.

Microsoft’s latest cumulative update doesn’t just fail to
address a bug that performs TRIM command on non-SSD drives—but
once again introduces installation issues, and other minor
gremlins.

The good news is that
Windows 10’s November 2020 update is not crashing devices
with Blue Screen of Death error. We haven’t seen reports of
system crashes or critical issues after users applied the
patch. Worst problems only to be affecting a very small subset
of users and the update installation problem is more
widespread.

This month, Microsoft has released cumulative updates for
Windows 10 version 20H2, 2004, 1909, 1909, and other supported
versions.

Windows 10 KB4586781 fails to install

Unsurprisingly, there have been incidents of the KB4586781
update failing to install and most people have avoided the
issues by simply pausing the update.

In some cases, Windows 10 2020-11 cumulative update fails
to install due to error code 0x8007000d.

“Some update files are missing or have problems. We’ll try to
download the update again later. Error code: (0x8007000d),”
another error message reads.

Others are reporting that Windows Update takes longer than
usual to apply the patch and the process ultimately fails with
error 0x800f0831.

“The update downloads and installation goes to 100%. After
reaching 100%, the update fails with 0X80070308,” another user
noted in the Feedback Hub.

Some users have also noted that Microsoft Edge now takes longer
than usual to open up and the mouse pointer keeps on blinking
after they applied the patch.

Luckily, most Windows 10 problems have been mirror this time,
which is good news as the October cumulative update caused all
kinds of issues, including system crashes and Blue Screen
errors.

Microsoft has a lot of work to do to fix the installation
trouble. Plus, there are a lot of Windows 10 problems that are
still not fixed. For example, an issue where Windows 10 tries
to optimize the hard drive with unsupported TRIM command
remains unpatched.

Temporary user profile

After applying November 2020 cumulative update, some users have
again reported the temporary user profile bug.

Microsoft hasn’t officially acknowledged the temporary user
profile bug, which has been a race condition and result of an
issue in the update installation process or antivirus software,
so it’s not exclusive to any particulate update.

“Recent Windows update at work pissed me off today by
obliterating all user settings, dozens of desktop shortcuts and
replacing my user login account as though I started it from
scratch,” one user noted on Reddit.

“[Update] wiped out all the customization on the taskbar and
desktop. It also changed the desktop image and wipeout history
in MS Office,” another user said.

If the update is in the installation process, Microsoft could
actually fix the temporary user profile issue in the next major
feature update, which should be out next year.

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