remove characters from string

Question

i have string "\\\\?\\DISPLAY#AUO223E#4&2ffa6286&0&UID67568640#{e6f07b5f-ee97-4a90-b076-33f57bf4eaa7}" and this string should be renamed to 

DISPLAY\AUO223E\4&2ffa6286&0&UID67568640_0

 

using regex or remove in c#

 

Thanks