I bought a new Lenovo notebook from Alibaba.com in China and asked the seller to convert the OS to English. The device arrived with Windows 11 Pro in English and a local user account already created.
I did login to my Microsoft user account via that local user account, but then after some trouble, created a separate Microsoft User Account and deleted the original local user account.
Recently I've been having some random shut down and restart issues, and also the problem of the device restarting immediately it is opened.
I discovered that Lenovo PC Manager and Microsoft PC hadn't been installed (perhaps they would come with the factory installation) so did so myself. The Lenovo PC Manager did generate some updates, but the shutdown issues persist.
I also did a Command Prompt>scan now and the result was some problems were detected but couldn't be fixed.
I have chatted Microsoft Customer Service and they recommended reinstalling the OEM, which would mean losing my installed third-party apps. This seemed a heavy-handed response, so haven't done so yet.
I took it to a local Lenovo Service store and the staff member said he detected the memory wasn't the original, and he recommended replacing it. This seemed unlikely from what I knew, so didn't go any further.
Just to highlight I have Windows 11 Pro.
I would what my next steps should be to resolve this issue?