So, this is a little of a long story. 5 months ago I decided to buy a new SSD, a Kingston A400 240GB SATA3 2.5"/7mm SSD, for my notebook, an HP pavillion Sleekbook 15-105la. Everything went well with the instalation, except the fact that if I turn off the legacy boost mode, uefi doesn't work. Since then, I haven't been able to get any windows update installed correctly and the windows shop also doesn't work. Right now the ssd is installed as a mbr and I suppose I need to change it to gpt, so I tried to make a uefi usb-stick through rufus, with the help of this post https://www.windowscentral.com/how-create-windows-10-usb-bootable-media-uefi-support#uefi_media_rufus and a windows iso from microsoft media creation tool, into my 32gb storage Sd. The problem is, whenever I try to boost the pc through the usb, I get the message checking media [Fail]. I've made sure to deactivate secure boost and to press F9 to boost the installation through the usb. I tried to boost the pc through my old hard drive by connecting it through usb, but it instantly sends me to system diagnostic and tries to repair itself. Now, I want to abstain myself from opening my notebook and reinstalling the old hard drive, also, I don't care about the data in my ssd, if needed I will format it. Thanks for the help!