How to extend system partition in Windows server 2008

Use Macrorit Disk Partition Expert extend system partition in Windows server 2008.
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When we are using Windows Server 2008, we usually encounter problem caused by few partitions in hard disk. Even though we can use partition manager to extend partition, the whole disk capacity is not changed, so promoting disk space usage rate is the first choice. Then how can we promote disk space usage rate? Changing cluster size can be an efficient solution. To manage partition better and access data more efficiently, every one cluster can only save one file. If the file size is too large, it will occupy multiple clusters. If the file size is small, it will also take one cluster. Thus, disk space is wasted. If we can change cluster size reasonably, we can avoid wasting disk space greatly. Therefore, setting reasonable cluster size is a good solution to promoting disk usage rate.