I reply in english, mein deutsch is so schlecht 🙂

for Xbox controller you need a specific adapter. Microsoft does not use standard bluetooth, you need this type of adapter
https://www.amazon.fr/Microsoft-9Z2-00002-Wireless-Windows-Adapter/dp/B000MGVAAQ/ref=sr_1_1/260-2389345-0136648?ie=UTF8&qid=1524390173&sr=8-1&keywords=adaptateur+manette+xbox+360+pc&dpID=41wtJrpwpzL&preST=SX300_QL70&dpSrc=srch

https://www.banggood.com/fr/Windows-PC-Wireless-Gaming-Adapter-USB-Receiver-for-Xbox-360-Controller-p-1219698.html?gmcCountry=FR&currency=EUR&createTmp=1&utm_source=googleshopping&utm_medium=cpc_elc&utm_content=zouzou&utm_campaign=pla-fr-com-pc&gclid=Cj0KCQjw5fDWBRDaARIsAA5uWTjHV0ijj4ZR8NlIBGHIIXpcKVJOl1tyURXR6D-Xhlg2Wn_uHEqErbsaAluKEALw_wcB&cur_warehouse=CN