Partition Assistant log is as follows:

====================== System Information ======================
Module Path: D:\tools\软件\PA5.5_Portable\PartAssist.exe
Product Name: Windows 7 Ultimate
Service Package: Service Pack 1
OS Version: 6.1
Total Memory: 3479 MB
Available Memory: 2961 MB
System Root: C:\Windows
Processor Architecture: x86
Processor Number: 4
Current Time: 2014-8-22 20:23:16
================================================================

[0       ]MRP.cpp(873): (D:\tools\软件\PA5.5_Portable\native\wlh\x86\fre\ampa.exe, C:\Windows\ampa.exe), (D:\tools\软件\PA5.5_Portable\native\wlh\x86\fre\ampa.sys, C:\Windows\system32\ampa.sys)
AOMEI Partition Assistant 5.5 Professional Edition



//////////////////////////// Reload Disk Information ////////////////////////////


Disks Summary:
================================================================
Disk Index	Total Sector		Geometry			Product Name
----------	------------		--------			------------
0		976773168 (465.76GB)	(60801,255,63,512)		HGSTHTS545050A7E3800 (Base Disk)
1		125435904 (59.81GB)	(7808,255,63,512)		64GBSSD              (Base Disk)


Partitions Summary:
================================================================
Disk	Partition	Drive Letter	File System	Total Sector		Used Sector		Free Sector		Partition Status	Pri/Log		DBR Start Sector	End Sector      			MBR Start Sector			Cluster Size	Volume Label
----	---------	------------	-----------	------------		-----------		-----------		----------------	-------		----------------	----------------			----------------			------------	------------
0	1		D:		NTFS(3.1)   	943735536  (450.01GB)	441443240  (210.50GB)	502292296  (239.51GB)	None                	Primary		2048           		943737584      (58744,241,42)		0           (0,32,33)			8		
0	0		*:		Unallocated 	33031487   (15.75GB)	0          (0KB)	33031487   (15.75GB)	None                	Logical		943737585      		976769071      (60801,15,62)		943737585   (58744,241,43)			0		

1	1		C:		NTFS(3.1)   	61928897   (29.53GB)	42199200   (20.12GB)	19729697   (9.41GB)	Act Boot Sys        	Primary		2048           		61930945       (3855,5,56)		0           (0,32,33)			8		WIN7
1	0		*:		Unallocated 	49738302   (23.72GB)	0          (0KB)	49738302   (23.72GB)	None                	Logical		61930946       		111669247      (6951,22,47)		61930946    (3855,5,57)			0		
1	2		E:		Other       	13750207   (6.56GB)	0          (0KB)	13750207   (6.56GB)	None                	Primary		111669248      		125419454      (7806,254,63)		0           (6951,22,48)			0		

================================================================
AOMEI Partition Assistant Is Working...
 

==========================User Operations==============================
1.Creating Partition
	Hard Disk:		2
 	Drive Letter:		F:
 	File System:		Unformatted
 	Partition Label:	
 	Size:			23.72GB
 	Start Sector:		61931520
 	PtStart Sector:		61931520
 	Total Sector:		49736295
 	PtTotal Sector:		49736295
 	Logical/Primary:	Primary
 	Cluster Size:		8

=======================================================================

[0       ]vol.cpp(602): Failed to ISymLink.SymLimkToTarget.
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(602): Failed to ISymLink.SymLimkToTarget.
[0       ]vol.cpp(682): Failed to ISymLink.SymLimkToTarget(\Device\Harddisk1\Partition3).
[0       ]vol.cpp(469): Failed to ISymLink.SymLimkToTarget.
[0       ]vol.cpp(1621): Failed to GetVolumeDevice in MountVolumeDirectly.
[0       ]optcore.cpp(402): Failed to AttachDriveLetter in _CreatePart.
///////////////////////////////////////////////
抱歉,当前操作己取消!
信息代码: 2
描述: Failed to assign a drive letter, please manually add a drive letter for the partition by Windows built-in Disk Management or reboot computer and retry..
///////////////////////////////////////////////
[0       ]vol.cpp(602): Failed to ISymLink.SymLimkToTarget.
[0       ]vol.cpp(469): Failed to ISymLink.SymLimkToTarget.
[0       ]vol.cpp(1112): Failed to GetVolumeDevice in IsSystemVolume.



//////////////////////////// Reload Disk Information ////////////////////////////


Disks Summary:
================================================================
Disk Index	Total Sector		Geometry			Product Name
----------	------------		--------			------------
0		976773168 (465.76GB)	(60801,255,63,512)		HGSTHTS545050A7E3800 (Base Disk)
1		125435904 (59.81GB)	(7808,255,63,512)		64GBSSD              (Base Disk)


Partitions Summary:
================================================================
Disk	Partition	Drive Letter	File System	Total Sector		Used Sector		Free Sector		Partition Status	Pri/Log		DBR Start Sector	End Sector      			MBR Start Sector			Cluster Size	Volume Label
----	---------	------------	-----------	------------		-----------		-----------		----------------	-------		----------------	----------------			----------------			------------	------------
0	1		D:		NTFS(3.1)   	943735536  (450.01GB)	441443272  (210.50GB)	502292264  (239.51GB)	None                	Primary		2048           		943737584      (58744,241,42)		0           (0,32,33)			8		
0	0		*:		Unallocated 	33031487   (15.75GB)	0          (0KB)	33031487   (15.75GB)	None                	Logical		943737585      		976769071      (60801,15,62)		943737585   (58744,241,43)			0		

1	1		C:		NTFS(3.1)   	61928897   (29.53GB)	42217352   (20.13GB)	19711545   (9.40GB)	Act Boot Sys        	Primary		2048           		61930945       (3855,5,56)		0           (0,32,33)			8		WIN7
1	3		*:		Unformatted 	49736295   (23.72GB)	0          (0KB)	49736295   (23.72GB)	None                	Primary		61931520       		111667814      (6950,254,63)		0           (3855,15,1)			0		
1	2		E:		Other       	13750207   (6.56GB)	0          (0KB)	13750207   (6.56GB)	None                	Primary		111669248      		125419454      (7806,254,63)		0           (6951,22,48)			0		

