Reviews of refurbished computers must contain the name of the seller. I bought my M92p from Sunset Micro, and it arrived in only a few days. There was a COA sticker on the side, and a few scratches on the case, but it looked fine. The first thing I did was open the computer's case, and it was clean as a whistle inside. Then I hooked it up and turned it on. Windows came right up (no installation was required). Windows 10 Pro (1909) was pre-installed as "Owner" with no password and (apparently) all the installation defaults taken. The only non-Windows software was a hard-drive tester, which is not a bad thing for a refurbished PC (my hard drive tested ok).You might want to change the user-name and/or set a password and/or change the Privacy settings. The initial time-zone might be incorrect. You might want to install ClassicShell (makes W10 look more like W7) and/or 8GadgetPack (provides W7 gadgets).I did not read it ahead of time, but inside the box was a 12-page glossy "PC Setup & Troubleshooting Guide" for desktop computers. The "official" M92p manuals are available on the Lenovo website (pcsupport.lenovo.com) - search for M92p Desktop and select manuals related to the Small Form Factor (SFF) version.