Unfortunately, some people are reporting it’s causing serious slowdowns. If it’s already been installed, you’ll be able to update your system and action it.However, over on Reddit, John Wink, Senior Program Manager Lead at Microsoft, posts about a potential problem to be aware of: If you find that your PC is abnormally slow after installing the update, you may be seeing a problem that I’ve been trying to track down for a couple of weeks.
If you aren’t part of the Insider Preview program, and you’re running the standard version of Windows, there’s a cumulative update available today that will update your OS build to 10586.318.
I have a number of Windows XP and Windows 7 virtual machines installed on my Win10 host that have worked fine for months.
Today I had two Win 7 machines started and started a Win XP one, the performance on the XP VM was extremely slow or stalled for minutes at a time. I tried closing all other VM's and XP was still slow, tried a XP and host reboot and XP still slow (10 mins to restart XP).
Please give this a shot and post your results to this thread. Steps to disable Cortana: Click in the Cortana search box to bring up Cortana Click the Notebook Click Settings Move the slider under "Cortana can give you suggestions, ideas, reminders, alerts and more." to "Off".
While John Wink says elsewhere that it is "not a very wide-spread issue", it seems odd that Microsoft would push out an update with a known problem like this to all Windows users, even if there's a potential workaround available.