Hi guys. I'm new to this and in total confusion. I purchased an aspire v15 nitro preloaded with win 8.1. I upgraded to win 10 but decided to roll back to 8.1. Process failed and I got blue screen error msg and a useless lump of plastic. I had to purchase a set of recovery discs (reluctanlty at a cost of £51- yeah I know stupid of me). I have attempted to reinstall from the discs but I'm getting nowhere. I cntacted acer and they now tell me that I firstly need to download and instal and HDD formating tool. I am now totally confused frustrated and quietly seething. I need help, I'm outta my depth here. Can anyone provide some assistance as to which HD formatting tool to download- what I need to do with it in order to finally get the laptop up and running again? Your assistance is greatly appreciated!