Hi James,
My name is Jocelyn, an independent advisor and a fellow Windows 10 user happy to help.
Please do the following:
Step 1: Make sure you have all the latest Windows updates installed.
Select the Start (Windows) button from the bottom-left corner.
Go to Settings (gear icon).
Select the Update and Security icon.
Choose Windows Update tab in the sidebar (Circular arrows)
Select Check for updates. If there is an available update, it will begin downloading automatically.
Step 2:
There could be many reasons why your computer running slow during start-up, sometimes a slow computer is caused by programs running in the background. Check and remove or disable any TSRs and startup programs that automatically start each time the computer boots.
Right-click on your taskbar (at the bottom of the screen) and open Task Manager. Click on the Startup tab, and review for any applications that may be set to run at startup.
Step 3: Delete temp files that can help improve computer performance.
Open the Start menu and type %temp% in the Search field.
Press Enter and a Temp folder should open.
You can delete all files found in this folder and, if any files are in use and cannot be deleted, they can be skipped.
Step 5: Run SFC Scannow
Press Windows Key+X to open the Power User Tasks Menu.
Select Command Prompt (Admin).
After the User Account Control prompt appears. Click Yes.
At the Command Prompt, type sfc /scannow and press Enter.
Step 6: To Run Defrag
In the Windows Search box, on the taskbar, type defrag and select the Defragment and Optimize Drives option in the search results.
Click on the drive you want to defrag and optimize.
Click the Optimize button to being the defragmentation and optimization process.
Step 4: Run a Virus Scan
Download, install, and run a full scan with the most powerful free scanner Malwarebytes:
In the Malwarebytes Settings > Security tab set it to include scanning for Rootkits.
https://www.malwarebytes.com/mwb-download/
Download, install, and run a full scan with AdwCleaner:
https://www.bleepingcomputer.com/download/adwcl...
Please run a full scan with these free anti-malware software if it detects anything and it will get rid of for you. You can uninstall the program after the scan or after the trial expires.
You can also refer to the following Microsoft article for more tips on how to improve the performance of your PC.
https://support.microsoft.com/en-us/help/400201...
I hope this would help. Let me know if you need anything else.
Best,
Jocelyn