Windows 10: How to troubleshoot windows without access to start menu or settings?

I just came back to my computer trying to restart itself, and after a few failed attempts it came online but won't let me access my start menu or settings. My audio states "no audio device is installed" even though my speakers work with my phone. I can't even access the snip tool to make screen shots for this.I do have access to the internet.I am logged onto my Microsoft 365 account and do have access to Microsoft Word/Publisher/etc.I can open my file explorerBut I cannot open my start menu. Right clicking the start menu and trying to use the "run command" causes this error:shell:::{2599a1f3-2

:)

 

Unable to access the Start menu and sync mails with error: 0x80070003 on Windows 10

Hello Neil,

I realize the inconvenience you are facing in accessing the Start menu and syncing the emails on your device. Do not worry we will help you with this issue.

Provide us additional information to assist you better with this issue:

• What is the complete error message/ error code while trying to access the Start menu?
• Are you referring to Mail app/ Windows Live Mail/ Mail client version of Outlook to access emails on your device?
• Have you made any changes to the operating system prior to this issue?

For issues with Start menu error message:

I suggest you to refer to the below posts replied by Paul Sey
on August 21, 2015 and Ravinath P on October 5, 2015 respectively and check if it helps.

Refer: Critical Error – Start menu and Cortana
aren’t working. We’ll try to fix it the next time you sign in.

And,

“Critical Error – Start menu and Cortana aren’t working. We’ll try
to fix it the next time you sign in.”

If you are using Windows Mail app to sync mails, try the below troubleshooting steps and check if it helps.

Step 1: Follow the below steps to change the Mailbox sync settings.

• Open the Mail app and sign in to your account.
• Click on the gear icon (Settings) from the bottom left corner.
• Click on the Accounts under Settings.
• Click on your account and select Change settings.
• Click on the Change mailbox sync settings and check in the
  Sync options.

Step 2: I suggest you to run the
Windows Store Apps troubleshooter.

Windows Store Apps Troubleshooter,
troubleshoots problems that may prevent Windows Store Apps from working correctly.

Run the troubleshooter for Windows apps

Hope it helps. Kindly update the status of accessing the Start menu and syncing the mails for further assistance.

Thank you.

 

Start Menu List - Settings

You need to go one step further...

Settings >Personalization > Start, then click as shown by the RED square...

 

Unable to access Start menu, Control Panel with File System Error: 1073740940 on Windows 10

Hi Roy,

Thank you for posting on Microsoft Community.

We understand the inconvenience caused to you in accessing the Start menu, we will help you with this issue.

• Have you made any changes to the operating system prior to this issue?
• Have you tried the above mentioned troubleshooting steps to resolve the Start menu issue?

If you are still facing the issue, I suggest you to refer to the below Microsoft article try the troubleshooting steps mentioned and check if it helps.

Get help with the Windows 10 Start menu

Hope it helps. Kindly update the status of this issue for further assistance.