This is the most effective fix for persistent error 1034 on Windows 7/8/10.
Error 1034 is a specific iTunes restoration error that appears when you try to jailbreak via the "double-h" method or when sideloading a jailbreak application fails during the exploit stage. However, in the context of an iPad 4 jailbreak, Error 1034 generally refers to a triggered by the jailbreak tool. ipad 4 jailbreak 1034