Soldered RAM below 4GB means you're stuck.

Yes, soldered RAM kills the upgrade path for Windows 11 if your laptop has less than 4GB total. You can’t swap or add more if the only RAM is soldered. If you have soldered plus an open slot, you might hit the 4GB minimum by adding a stick, but that assumes the soldered part plus the new stick totals at least 4GB. That’s often not the case on very old budget laptops (e.g., 2GB soldered + slot).

The real problem: even if you squeeze past the 4GB minimum, Windows 11 will run like garbage. 4GB is the absolute floor, and most apps will stutter. So the soldered RAM question is really about whether you can even hit the floor, and if you can’t, the laptop is e-waste for Windows 11.

Check your laptop’s specs. If it’s soldered-only and below 4GB, don’t bother. Save for a new machine or try Linux.