Critical Error – Your Start menu isn’t working. We’ll try to fix it the next time you sign in.

Hi SamosaChutney
I am Vijay, an Independent Advisor. I am here to work with you on this problem.

A. Try to boot into safe mode

Power ON your computer and as Windows / manufacturer's Logo appears, Power OFF - Repeat 3 times
Now your computer will go into Advanced Recovery Environment
Advanced Options > Troubleshoot > Advanced Options > Startup Settings > Restart
Press 4 or F4 to enable Safe Mode (5 or F5 to enable Safe Mode with Networking)
Log in once Windows starts in safe mode
See whether you able to login. If yes, come out of this and start normally.

If you are not able to boot like above, You will need to boot through a Bootable USB drive. You will need to create this on another computer which is working - https://www.tenforums.com/tutorials/2376-create...

How to Boot from a USB Flash Drive in Windows 10 - https://www.tenforums.com/tutorials/21756-boot-...

B. Another option when you are in Advanced Options in previous step is to choose (Note - You won't lose any files in this step)
1. System Restore - This will restore your system to a point when things were working fine.
OR
2. Startup Repair - Startup Repair upgrade fixes all Windows errors and retains all files, applications and settings.

C. Penultimate option could be Reset this PC.
In Step A > Troubleshoot > Reset this PC - Keep my files and Remove everything. Choose this carefully as most likely you would like to keep your files.
All apps will be removed and windows will be reinstalled.

D. Last option could be a clean Install. This is the best method to perform a clean install of Windows 10. (If you want to rescue your files, there is a section Rescue Files when Windows Won't Start)

https://answers.microsoft.com/en-us/windows/for...

If you want a very lightweight guide - Start fresh with a clean installation of Windows 10

https://www.microsoft.com/en-us/software-downlo...

Disclaimer - This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

Hello SamosaChutney,

I'm Independent Advisor and Microsoft MVP, here to help you with your question.

Try to re-register Start Menu:

1. Open Task Manager, click File > Run new task.

2. Type powershell in the Create new task box. Check the option 'Create this task with administrative privileges'. Click OK.

3. In the administrative Windows PowerShell window, type/paste following and press Enter key:

Get-appxpackage -all *shellexperience* -packagetype bundle |% {add-appxpackage -register -disabledevelopmentmode ($_.installlocation + “\appxmetadata\appxbundlemanifest.xml”)}

4. Let it complete and then restart your system.

Reference: https://www.kapilarya.com/re-register-start-men...

Let us know if this helps!

Note: Included link in this reply refers to blog post by a trusted Microsoft MVP.

Hi Samosa. I'm Greg, an installation specialist and 9 year Windows MVP here to help you.

See if you can get into Safe Mode with Networking, or Safe Mode accessed by one of these methods: https://www.digitalcitizen.life/4-ways-boot-saf... or the Repair Mode by one of these methods: https://www.tenforums.com/tutorials/2294-advanc...

Access the Command Prompt to re-register the Start Menu:
https://www.kapilarya.com/re-register-start-men...

Other Start Menu fixes that are working here:
https://community.spiceworks.com/how_to/125068-...
https://support.microsoft.com/en-us/help/12385/...

If nothing else helps you can try System Restore to a point before this began, or do a Reset from the Repair Mode:
https://www.tenforums.com/tutorials/2294-advanc...

I hope this helps. Feel free to ask back any questions and let us know how it goes. If you'll wait to rate whether my post helped you, I will keep working with you until it's resolved.

________________________________________________________

Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.

Thank you however this didnt solve the issue. I copy pasted the script to make sure I ran the correct command. 

Hi Samosa,

Microsoft have released version 1809 of Windows 10, click the link below, then click 'Update Now' on that page to immediately get 1809 and bring your PC right up to date and resolve any errors you are having in Windows 10

https://www.microsoft.com/en-us/software-downlo...

Looks like the update might have fixed the issue. I do not see the error anymore. Still wasted a day.