the windows installer service could not be accessed

[dan20man]

...this can occur if the windows installer is not correctly installed. contact your support personnel for assistance.

[#2]

Hello,

See if this fix helps you:

https://www.kapilarya.com/the-windows-installer-service-could-not-be-accessed-in-windows-11

Let us know if this helps!

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

*This reply was updated to make sure it is valid.