Windows 7 Ultimate 32 Y 64 Bits En Un Solo Iso

I managed to reinstall the most recent bluetooth driver via the Intel website, and miraculously, everything seemed to work again. I then shut down my pc. The next day, I activated my pc and simultaneously activated my headphones to look for bluetooth connection. It connected successfully and keeps doing so, but only if I rigorously avoid getting my pc in sleep mode. At a certain moment, however, when the bluetooth toggle bar was visible but my headphones were disconnected for some odd 15 minutes perhaps, I saw the icon disappear, after which I checked the device manager and found everything in grey again.