I have a Lenovo IdeaPad laptop that came with Windows 10.
It has 4 Gb RAM, which was plenty just a few years ago. But on this machine Windows 10 was pretty slow to start with. Adding a 16Gb flash drive dedicated to ReadyBoost helped matters somewhat.
But now, after half a year of use, it became very slow even with ReadyBoost - so slow even YouTube videos can stutter. I did install Avast which does not detect anything, so I don't think it's malware. It is probably the usual "Windows rot", which I am familiar with since Windows 9x and which requires a fresh reinstall. Yes, half a year is a bit too soon - Windows tended to last over a year until it rotted like that. Perhaps it's those huge updates...
Anyway - HOW can I do that fresh reinstall thing if no installation media came with the device?
An alternative would be installing Windows 7 and I even have some OEM packs, but I'm not sure I can find Windows 7 drivers for everything on the machine, including the touch screen, etc. Also, I wonder if Windows 7 will keep working in "tablet mode" which this thing has.
(Another alternative is Linux and it is seriously being considered but I am asking here so I can look at WIndows options. Also not sure about "tablet mode" on Linux).