taskbar and start menu very slow to open

Hi BobFlowers
I am Vijay, an Independent Advisor. Please try these options one by one and check after each option.

1. CTRL+SHIFT+ESC to start Task Manager
Locate Windows Explorer in Processes tab and kill it
Now at the top File > Run new task > Put explorer.exe and Enter

2. Reinstall Start Menu
Windows Key+X > Click Powershell (Admin) > Copy the below and paste into Powershell > Enter > Reboot your computer

Get-AppXPackage -Name Microsoft.Windows.ShellExperienceHost | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

Hi BobFlowers
I am Vijay, an Independent Advisor. Please try these options one by one and check after each option.

1. CTRL+SHIFT+ESC to start Task Manager
Locate Windows Explorer in Processes tab and kill it
Now at the top File > Run new task > Put explorer.exe and Enter

2. Reinstall Start Menu
Windows Key+X > Click Powershell (Admin) > Copy the below and paste into Powershell > Enter > Reboot your computer

Get-AppXPackage -Name Microsoft.Windows.ShellExperienceHost | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

Thank you Vijay for your reply, I tried the steps that you suggested, but that did not resolve my problem, it still takes about one minute for the programs I click on to open. I have and  i7-8700 K With 32 GB of RAM.

I am releasing the question so that another expert can take over.

Hi Bob

My name is Andre Da Costa; an Independent Consultant, Windows Insider MVP and Windows & Devices for IT MVP. I'm here to help you with your problem.

Option 1:

uninstall your display driver:

Press Windows key + X
Click Device Manager
Expand Display adapters
Right click the current display adapter
Click Uninstall
Exit Device Manager
Restart

Option 2

1. Open Notepad.

2. Copy the following text into Notepad:

@echo off

taskkill /f /im explorer.exe

taskkill /f /im shellexperiencehost.exe

timeout /t 3 /NOBREAK > nul

del %localappdata%\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\TempState\* /q

timeout /t 2 /NOBREAK > nul

start explorer

@echo on

3. Click File and Save.

4. Choose a location to save the file. Enter a File name of ClearTileCache.bat and select Save as type of All files (*.*). Click Save.

5. Open File Explorer and navigate to the location that you chose to save the file to. Double-click ClearTileCache.bat to run the file.

If the above steps are not successful, it could be a user profile issue.

Could you confirm if this also happens in the default Administrator account?

Open Start
Type: cmd
Right click CMD
Click Run as administrator

At the command prompt, type:
net user administrator /active:yes

Hit Enter

Close command prompt, restart, then try signing into the Administrator account.

Check if its still slow.

If it still is:

Try simplifying your configuration:

Try simplifying your configuration by keeping only your mouse and keyboard attached, that means:

Disconnecting multiple display monitors.
Remove discrete video cards, use the on-board graphics if your motherboard supports it.

Swap out memory modules - a RAM module might be corrupt - you can also ensure RAM sticks are installed slots 1 and 3. Your RAM modules might be corrupt, try scanning them for errors.

https://www.groovypost.com/howto/use-the-memory...

If you have more than one hard disk installed, disconnect all except the target disk where Windows 10 will be installed.

Reset your BIOS Defaults.
https://www.groovypost.com/howto/reset-pc-bios-...

Information in the above link is sourced from a trusted Microsoft MVP blog.

Hi Bob

My name is Andre Da Costa; an Independent Consultant, Windows Insider MVP and Windows & Devices for IT MVP. I'm here to help you with your problem.

Option 1:

uninstall your display driver:

Press Windows key + X
Click Device Manager
Expand Display adapters
Right click the current display adapter
Click Uninstall
Exit Device Manager
Restart

Option 2

1. Open Notepad.

2. Copy the following text into Notepad:

@echo off

taskkill /f /im explorer.exe

taskkill /f /im shellexperiencehost.exe

timeout /t 3 /NOBREAK > nul

del %localappdata%\Packages\Microsoft.Windows.ShellExperienceHost_cw5n1h2txyewy\TempState\* /q

timeout /t 2 /NOBREAK > nul

start explorer

@echo on

3. Click File and Save.

4. Choose a location to save the file. Enter a File name of ClearTileCache.bat and select Save as type of All files (*.*). Click Save.

5. Open File Explorer and navigate to the location that you chose to save the file to. Double-click ClearTileCache.bat to run the file.

If the above steps are not successful, it could be a user profile issue.

Could you confirm if this also happens in the default Administrator account?

Open Start
Type: cmd
Right click CMD
Click Run as administrator

At the command prompt, type:
net user administrator /active:yes

Hit Enter

Close command prompt, restart, then try signing into the Administrator account.

Check if its still slow.

If it still is:

Try simplifying your configuration:

Try simplifying your configuration by keeping only your mouse and keyboard attached, that means:

Disconnecting multiple display monitors.
Remove discrete video cards, use the on-board graphics if your motherboard supports it.

Swap out memory modules - a RAM module might be corrupt - you can also ensure RAM sticks are installed slots 1 and 3. Your RAM modules might be corrupt, try scanning them for errors.

https://www.groovypost.com/howto/use-the-memory...

If you have more than one hard disk installed, disconnect all except the target disk where Windows 10 will be installed.

Reset your BIOS Defaults.
https://www.groovypost.com/howto/reset-pc-bios-...

Information in the above link is sourced from a trusted Microsoft MVP blog.

I've tried all of the suggestions and nothing has worked. I even took my drive with my operating system on it and put it in a different computer, when I booted it up in the computer I still had the same problem. I tried to do a reinstall of Windows but it wouldn't let me without losing my apps and data, I really want to avoid losing those.

What is the actual build number you are running? You mentioned being on a Windows Insider Preview build.

Because you are running a Windows Insider Preview build, you might be seeing defects or bugs in the build you are using, which is still under development. I suggest you use the Feedback Hub to submit a bug report detailing your problem.

I recommend you use the Feedback Hub to submit a suggestion detailing your request.

https://windows10.help/blogs/entry/54-how-to-su...

Could you confirm if this also happens in the default Administrator account?

Open Start
Type: cmd
Right click CMD
Click Run as administrator

At the command prompt, type:
net user administrator /active:yes

Hit Enter

Close command prompt, restart, then try signing into the Administrator account.

Check if the apps and Start menu is still slow.

If it still is, you might have to seriously consider performing a custom install to correct it.