<div>
If all works as expected after a restart, then this will almost &quot;certainly&quot; be a result of some software you have installed on your PC that is misbehaving. When did this behavior start? What have you installed or changed on your system since the behavior started?<br />
<br />
To troubleshoot this, keep a close note of what you do on your system &quot;before&quot; it happens again - that will give you a starting point in identifying what's causing your issue.<br />
<br />
I hope that's helpful.<br />
<br />
Regards, Andrew
</div>


If all works as expected after a restart, then this will almost "certainly" be a result of some software you have installed on your PC that is misbehaving. When did this behavior start? What have you installed or changed on your system since the behavior started?

To troubleshoot this, keep a close note of what you do on your system "before" it happens again - that will give you a starting point in identifying what's causing your issue.

I hope that's helpful.

Regards, Andrew

<div>
What build? Did you install all Windows updates?
</div>


What build? Did you install all Windows updates?

<div>
You can do a Windows 10 Repair Install from the Microsoft Media Creation Link and Keep Everything. <br />
<br />
That will uninstall legacy software that is not compliant
</div>


You can do a Windows 10 Repair Install from the Microsoft Media Creation Link and Keep Everything.

That will uninstall legacy software that is not compliant

xman san

<div>
It takes time but is simple and easy to do and ferrets out problems faster than digging for them. That is why I use this technique
</div>


It takes time but is simple and easy to do and ferrets out problems faster than digging for them. That is why I use this technique

<div>
you posted :<br />
After rebooted, it return to normal.<br />
Why? --<b> usually this is due to an update of any software, that does not complete, or requires a reboot<br />
</b> How to solve it? &nbsp;<b>by rebooting</b>
</div>


you posted :
After rebooted, it return to normal.
Why? -- usually this is due to an update of any software, that does not complete, or requires a reboot
How to solve it?  by rebooting

<div>
Yes, after reboot everything return to normal.<br />
It happens without notice.<br />
I &nbsp;will try every expect advice later.<br />
thanks
</div>


Yes, after reboot everything return to normal.
It happens without notice.
I  will try every expect advice later.
thanks

<div>
If is it common problem of Win10.？
</div>


<div>
No. It is some about your machine that is causing this.
</div>


No. It is some about your machine that is causing this.

<div>
i'm not so sure about that John<br />
imo MS updates often cause problems
</div>


i'm not so sure about that John
imo MS updates often cause problems

<div>
xman, any update on the status of this question? If solved, then if you could mark the most helpful solutions and close your question, that would be a great help for others. Thanks.<br />
<br />
Regards, Andrew
</div>


xman, any update on the status of this question? If solved, then if you could mark the most helpful solutions and close your question, that would be a great help for others. Thanks.

Regards, Andrew

<div>
It is not total solution but it is one of good solution.
</div>


It is not total solution but it is one of good solution.

<div>
<div class="content wysiwyg-content">
In recently, we find out some win10 pc does not<br />
work. <br />
After rebooted, it return to normal.<br />
Why? How to solve it?<br />
Pls. help
</div>
</div>


In recently, we find out some win10 pc does not
work. 
After rebooted, it return to normal.
Why? How to solve it?
Pls. help

WIn 10 start menu not work

Windows 10 is a personal computer operating system featuring the "universal application architecture" (UAP); apps can be designed to run across multiple devices with nearly identical code, including PCs, tablets, smartphones, embedded systems, Xbox One, Surface Hub and HoloLens. Windows 10 also includes a virtual desktop system, a window and desktop management feature called Task View, the Microsoft Edge web browser, support for fingerprint and face recognition login, voice-based search (Cortana), new security features for enterprise environments, and DirectX 12 and WDDM 2.0 to improve the operating system's graphics capabilities for games.

Windows 10

Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.