Launch Partition Assistant to get its main interface as below. For a free trial, you can download the demo version.
The following is a demonstration of how to do it step by step. With it, you can convert a dynamic disk back to basic and then extend system partition. This partition management software is compatible with all Windows Server and Windows PC. Here we would like to share you with an effective solution: turn to AOMEI Partition Assistant Server. Now that you have known the reason for which why the “The selected volume is a system or boot disk or was created on a basic disk in an earlier version of Windows and cannot be extended” appears, it’s time to figure out how to get around of this problem. How to extend dynamic system volume successfully? You can only extend simple or spanned volumes that are not system or boot volumes, as long as there is free disk space available. Actually, with Windows built-in disk management tool, you cannot extend a system/boot/striped/mirrored/RAID-5 volume, or a volume was created on an earlier version of windows on a dynamic disk. But is this really?Īfter converting to a dynamic disk, you may receive this error message: "The selected volume is a system or boot disk. Therefore, some users choose to convert basic disk to dynamic because Windows disk management tool can extend simple volumes. Why the “The selected volume is a system or boot disk” error pops out?įor many Windows 2003 or XP users, it is really a headache problem to extend system volume when C drive is running out of space because there is no extend volume feature in Windows 2003/XP built-in Disk Management tool. Is there any way can solve this problem and extend the C drive successfully?” Every time when I am trying to extend the C drive I get the error message saying ‘The selected volume is a system or a boot disk or was created on basic disk in an earlier version of Windows and cannot be extended’. “I have Windows 2003 32 bit Server and low disk space on C drive.