ThinkPad guides

Run Microsoft's free PC Health Check. PCs from 2018 on usually pass, and a TPM or Secure Boot failure can often be fixed in the BIOS.

Not officially, and no setting or processor swap changes that. Your options are ESU for now, Linux, a workaround, or replacing it.

Run powercfg /batteryreport and divide Full Charge Capacity by Design Capacity. Under 70% means it's time for a new battery.

If Windows shows an NVMe drive, yes. Otherwise check the maker's spec sheet for your exact model, or open the cover.

Yes, if it's an off-lease business model from 2018 or later with an SSD, 8 to 16 GB of memory, and a warranty.

For most people, the T480: it runs Windows 11, takes 32 GB of memory, and has a swappable battery.

Yes. It runs Windows 11 officially, takes 32 GB of memory and an NVMe SSD, and needs one firmware fix.

Usually the ThinkPad: more memory, a better screen and keyboard, and replaceable parts. New wins on warranty and battery.

Check the processor in Settings, System, About. For the exact date, look up the serial number on the maker's site.

For web, email, documents, and Linux, yes, with an SSD. It can't run Windows 11 officially.

Linux Mint for most models: Xfce on 4 GB or older ones, Cinnamon on 8 GB. Ubuntu or Fedora on a T480 or newer.