I bought a Lenovo ideapad U410 a while ago. It had a 20 GB SSD in addition to the 500 GB HDD.
Someday it miraculously stopped booting properly. The Lenovo screen showed up for minutes. And the only way to make it boot was to wait for an arbitrary amount of minutes and then press ctrl+alt+del to make it reboot.
I tried to reinstall Windows. But for some reason the SSD won't show up again. And the problem persisted. I even tried to install different versions of Windows AND Linux (mostly ubuntu), but neither did the SSD ever show up again (not even in partition managers), nor did this boot error disappear.
Has anyone an explanation for any of this?