Win7 can not format the partition how to do

caused the system can not be properly partitioned and installed the problem is not unique, for Windows7, users install it, if you can not format and re-create the partition, you may wish to refer to the following article Said the solution.
Under normal circumstances, the Windows 7 installer will let the user choose the installation partition (Figure 1), but sometimes, the hard disk clearly has several partitions, the installer only recognizes the current partition (Figure 2).

Figure 1 Let users choose the installation partition of Windows7

Figure 2 The installation program only recognizes a hard disk partition
In fact, when the interface shown in Figure 2 appears, it is not said There is a problem with the Windows 7 installer, and it doesn't mean that the hard drive itself has a problem. After clicking the “DriverOptions(advanced)” button in the above figure, the Windows 7 installer will let the user create a new partition (as shown in Figure 3, please note the difference between Figure 2 and Figure 3).

Figure 3 Click DriverOptions(advanced)
Figure 4 is to create a new partition according to the Windows7 installer requirements:

Figure 4 Install Windows7 prompt new partition
Figure 5 is after the new partition Situation:

Figure 5 New partition after partition
This shows that if you eliminate the problem of the hard disk itself, we do not have to suspect that there is a problem with the Windows 7 installer (if there is a problem, it is also common in pirated Windows 7 installation) Programs, genuine will not have such problems).
In addition, some users attribute this problem to "Windows7 installer can not identify the hard disk partition", from the above solution, such a statement is also untenable.