Great tablet for a good price!
Conclusions: First of all, the charger that came with the tablet isn't able to charge the tablet so I had to buy an other charger + usb cable. Second, the battery could be bad (like mine). But thats are all the negative points so far. Dual Boot works great, you can easily choose between Android or Windows. About the micro SD adapter, its working but Windows recognize it not as a USB/DISK partition. It's like putting an SD card in your pc/laptop. In windows you can put media on it but it isn't possible to install