Did you use the official recovery image that has all the drivers included? Go to https://support.microsoft.com/en-us/surfacerecoveryimage
(with a different Windows computer if yours is not working properly)
and download a recovery image for your Surface. You will need a 16GB or 32GB USB stick (also called a flash drive) formatted FAT32 (use a Windows computer). You can't use an actual external USB hard drive for this. Best to purchase and use a new, previously unused USB stick for this. Use FULL format and not quick format and give the volume a name like surfboot. Unzip/extract the recovery zip to the root of the formatted USB stick