How do I delete Fedora 27?
I installed Fedora 27, and later decided I wanted to restore Windows. I copied my entire hard drive to a 30gb MicroSD card before installing Fedora. I have no recovery disk, just an SD card. My hard drive is only 30gb, so I can't fit Fedora and Windows at the same time. If I can delete Fedora I'll be able to start my computer from my live flash drive and reinstall windows. How do I uninstall Fedora 27 from my hard drive?
Boot from your sd card. if you did the backup with an image program, you may have to use that image program to restore it. if you just copied windows with the copy command, you have nothing to restore, as the copy command does not get all files.
copying your entire hard drive to an SD card doesn't make the SD card bootable as if it was a hard drive. You can download an .iso from Microsoft, burn it to another SD card/USB drive, boot from there, install Windows (remove fedora by removing the partitions), and then restore content from your backup SD card.
You should have cloned your hard drive to an external media before installing Fedora. Now you need to reinstall Windows, but not by simply restoring your "backup"
When restoring files after fresh installation, like florian suggested, remember to only copy user files, e.g desktop, documents, pictures etc. Don't copy system files.
PS Installing windows from scratch in general is a good thing, you get rid of bloatware from manufacturer, just remember to get latest drivers.