New
#420
Thank you for your quick answer. Indeed I have 4 primary partitions. But in command prompt/diskpart when I choose disk 0 (the only one I have) there is no free space for extended partition... Although Disk Management clearly shows 339.76GB unallocated space... When I type "create partition extended" or "create partition extended size= and MB of unallocated space taken from Disk Management, there is information "No usable free extend could be found. It may be that there is insufficient free space o create a partition at the specified size and offset. Specify different size (...)" and something about MBR format.