I purchased the"Lenovo ThinkCentre M900 Tiny Desktop Micro Tower PC (Intel Core i5-6500T, 8 GB Ram, 256GB SSD, USB 3.0, WiFi) Windows 10 Pro (Renewed)"a little over 90 days ago. I am in online school and since I received the product, I have had no issues. Everything has been pristine and perfect. Not a single problem. However, a few days ago, the computer said a system update was needed and I allowed the update. After the update, it prompts a box on the screen indicating a restart after the update. I clicked on "restart now" and since then my computer has never turned back on. The modem box turns on bc the light turns on and I can hear the fan, the mouse also lights up but the monitors receive no signal nor does the keyboard and monitors remain in standby or sleep mode. They don’t even light up. But I can see the sleep mode lights blinking. It doesn’t even display the windows logo. I have been emailing back and forth with this company everyday since this happened and they have been no help. I have all my school information and school assignments and school paperwork on there. They refuse to help me out and resolve this issue. I just feel awful because I gave your company business and just because I passed the 90 days doesn’t mean you should just forget about your customers and whatever issues they have with YOUR product they purchased from YOU, they say whatever happens to them happens. I literally have no complaints besides this issue they won’t help me with. I reached back out to support from them since they are the ones who put it all together, rather than going to a computer store and paying absurd prices.****BE ADVISED****…. If you purchase a device that will not come with the latest software, although it may be more affordable at the time, it will at some point tell you to update and then you will lose your device bc obviously the update is can not be tolerated on the outdated device. It made it crash.Very, VERY disappointed with you Shinobi PC. I will not order from you again.I invested a lot of money into supplies and equipment after I made this purchase with similar and matching brands to put together my school office