Part of it is the bots. Due to the map imbalance, the bots on alliance simply stop functioning properly. They just stand in the middle and only cast when horde comes within range. Horde bots on the other hand can always successfully seek at least one cart - it might not be the best one to choose, but it's something.
Use Disk Management. To partition and format your drive, you can use Windows' built-in tool called Disk Management. You can repartition and format your hard drives in Windows using the Disk Management tool. In Windows 7, click Start. Next, right-click Computer, then click Manage. The Computer Management window will open.
It must be a hard drive. Choose Shrink Volume from the shortcut menu. Windows displays the Shrink dialog box where you can set the size of the new partition. Set the amount of disk space to release. Use the text box by the item Enter the Amount of Space to Shrink in MB to set the new volume size.