Perplexed

Please open the Task Manager and from Processes tab click CPU column to organize CPU utilization by highest CPU usage and post a screenshot of the Task Manager.

Hold the Windows key on your keyboard and Press R. In the run dialog; type services.msc

From the services console; locate the Windows Management Instrumentation service.

Right click the Windows Management Instrumentation serviceand stop the service to check issue resolves. When you stop Windows Management Instrumentation servicefew dependent services will also will be stop you can restart them after restarting Windows Management Instrumentation service

Open the Command Prompt by typing cmd.exe into Start Menu, right-click on Cmd.exe, and open it as an administrator.

Please execute following commands one at time.

Code:

Sfc  /Scannow


Dism  /Online  /Cleanup-image  /RestoreHealth

Malwarebytes' scanner
If this program is already installed: Skip the installation and run only the scan!
Download and install: Please download Malwarebytes' scanner to your desktop.

• Double-click mb3-setup-consumer-3.x.x.xxxx and follow the prompts to install the program.
• Click Finish.
• On the Dashboard, click the 'Check for Updates' button.
• After the update completes, click the 'Scan Now' button.
• A Threat Scan will begin. Please allow it to progress through the scanning process.
• When the scan is complete, if there have been detections, click Quarantines Selected button to allow the program to clean what was detected.
• In most cases, a restart will be required.
• Wait for the prompt to restart the computer to appear, then click on Yes.

How to get logs: (Export log to save as txt)

• After the restart once you are back at your desktop, open Malwarebytes once more.
• Click on the Reports tab > Scan Report. (if you have done more than one scan in the past, select the most recent that shows the Date and time of the scan just performed. Press View Report button.
• Click 'Export'.
• Click 'Text file (*.txt)'
• In the Save File dialog box which appears, click on Desktop.
• In the File name: box type a name for your scan log.
• A message box named 'File Saved' should appear stating "Your file has been successfully exported".
• Click Ok
• Find the log on your Desktop and Attach that saved log to your next reply.

(Copy to clipboard for pasting into forum replies or tickets)

Open the Command Prompt by typing cmd.exe into Start Menu, right-click on Cmd.exe, and open it as an administrator.

Please execute following commands one at time.

Code:

Chkdsk  C:  /f

Please download Malwarebytes' AdwCleaner onto your Desktop.

• Double click on AdwCleaner_xxxx.exe to run the tool.
• Click on Scan.
• After done scanning, please hit Logfile. Locate the logfile in the Scan tab, double-click on it, copy the information inside of it, and paste it into your next reply.
• You can find the logfile at C:\AdwCleaner[Sx].txt as well.

Fix with Junkware Removal Tool

Please download Malwarebytes' Junkware Removal Tool and save the file to your desktop.

• Right-click on the JRT.exe or Junkware Removal Tool icon and select Run as Administrator to start the tool.
• Follow the prompts and let this process run uninterrupted.
• This scan can take a while, depending on your System specs.
• Upon completion, a log (JRT.txt) will open on your desktop.

Please include the contents of that file in your reply.

Do not forget to re-enable your previously switched off protection software!
Please also manually reboot your machine after this procedure.


Please read carefully and follow these steps.

• Download TDSSKiller and save it to your Desktop.
  
• Extract its contents to your desktop.
  
• Once extracted, open the TDSSKiller folder and doubleclick on TDSSKiller.exe to run the application, then on Start Scan.
  
• If an infected file is detected, the default action will be Cure, click on Continue.
  
• If a suspicious file is detected, the default action will be Skip, click on Continue.
  
  

If you like can try repair install of Windows 10 without without losing anything.

I know about Junkware Removal Tool but it still does help remove old adwares.

You are very welcome!