I had the same problem and did something like TheSuperIndigo that doesn’t require copying the engine folder somewhere else
- I renamed my current version of UE4 with another name.
- I started downloading the new UE4 version in the same folder
- As soon as It started downloading I quit EGL
- Go in the newly created folder, Cut the only folder called .egstore
- Delete the empty UE4 folder
- Rename the old UE4 with the correct name and paste the .egstore folder inside
- Open EGL