Windows 10: Computer extremely slow overnight

Hello, I dont know why, my computer became extremely slow overnight, the startup takes 5 minutes to get in the login screen instead of 10 seconds, after login I get a black screen with mouse for 10 minutes then just my screenshot without any shortcuts, by clicking on the search menu I just get the round cursor without any response. So naturally I tried to reset the bios, disable fast boot and that increased the startup time by 4, I tried to start the computer in safe mode, it took about 3-4hours just to get to the blue screen with the few options I had. From there I decided to reininstall wind

:)

 

Windows 10 | Computer extremely slow overnight

Hi,

Lately I've been having some issues with my Dell Precision 5530. When I come to check the computer overnight the clock on the login screen has stopped working. This has happend to me twice and now this is the indicator that the computer is now going to lagging
and be very slow.

Issues after logging in with stopped clock:

• Everything is super slow, typing and performing actions.
• New programs can be started using the windows start menu, but I can't close them. They still appear on the task bar when "closed".
• Task manager is showing no CPU activity. The CPU display in the performance TAB is not moving and appear to be stuck as well. In the details pane in the task manager every process has 00 in CPU.

I then want to just shutdown / restart the computer. Using the start menu to perform these actions nothing happends, the computer simply wont turn off. I then need to hold the power button for the PC for 10-15 seconds before it finally shutsdown. On the
next boot everything is fine.

Is there any wise people who are able to help me figure out why this is happening to me?

 

computer running extremely slow

computer running extremely slow

 

Computer extremely slow after Unexpected_Store_Exception error

Hi,

Thanks for posting your query on Microsoft Community.

We understand the inconvenience caused and we will try our best to resolve the issue.

We appreciate you for trying the troubleshooting steps.

The error Unexpected_Store_Exception, is related to the driver corruption.

As the issue still persists, I suggest you to run System maintenance task and check if it helps.

The Run maintenance task checks issues that might slow down your computer's, such as how many users are currently logged on to the computer and whether multiple programs are running at the same time.

Follow the below steps.

• 
  Press Windows + X on the keyboard.
  
• 
  Select Control Panel.
  
• 
  Select Troubleshooting.
  
• 
  Click on Run maintenance task under
  System and Security.
  

Hope it helps, reply to us with the status of your issue. We will be happy to assist you.