Question Can’t boot any system after trying to install new Windows on already installed Windows ?

[gekon420]

Hi!
Today I wanted to install new Windows and I thought it wouldl automatically replace old windows with the new one.
I’ve downloaded windows from official site, clicked to setup it on to USB. Restarted pc, selected USB as boot option, and when installing windows it said “u can’t install windows on that disk”.
Seriously, I don’t know what I did, but right now I can’t boot any disk to start system.
I think I messed up something with disks and bios.
Please, help me

 

[Colif]

is there anything on the PC you want to keep?

what was message you got when you tried to install? Anything about MBR?

what are specs of PC? What motherboard do you have?

If you want to replace windows, and there is nothing on it you want to keep, this should help = https://forums.tomshardware.com/threads/windows-10-clean-install-tutorial.3170366/

selected USB as boot option

what did you do here?

 

[gekon420]

is there anything on the PC you want to keep?

what are specs of PC? What motherboard do you have?

If you want to replace windows, and there is nothing on it you want to keep, this should help = https://forums.tomshardware.com/threads/windows-10-clean-install-tutorial.3170366/

Yeah, but the thing is, I don’t have access to someone with pc right now. Basically I think that I’ve just deleted windows, not all the files. (

 

[Colif]

if it boots off usb, we can check
boot from installer:

• on screen after languages, choose repair this pc, not install.
• choose troubleshoot
• choose advanced
• choose command prompt
• type notepad and press enter
• in notepad, select file>open
• Use file explorer to copy any files you need to save to USB or another hdd