Hi and thanks for replies. firstly My System drive has only 1 volume. So don't think that was the problem. All I did was click 'System Backup' ​You don't think it was trying to back up my whole PC do you? ;( Here is the only log that seems to be about this backup attempt. AOMEI Backupper 2.1.0 log is as follows: ====================== System Information ====================== Module Path: C:\Program Files (x86)\AOMEI Backupper Standard Edition 2.1.0\Backupper.exe Product Name: Windows 7 Ultimate (6.1.7601.2) Service Package: Service Pack 1 OS Version: 6.1 Total Memory: 8089 MB Available Memory: 4467 MB System Root: C:\Windows Processor Architecture: AMD64 Processor Number: 8 Current Time: 2014-12-19 8:50:49 ================================================================ [0 ]!(::GetFileAttributesA(sCurPath) == INVALID_FILE_ATTRIBUTES) return code: 0x00000000, NetworkMgr.cpp(199). [2 ]!(::GetFileAttributesA(sCurPath) == INVALID_FILE_ATTRIBUTES) return code: 0x00000000, NetworkMgr.cpp(199). diskinfo.h(451): Failed to init GPT style table. diskinfo.h(451): Failed to init GPT style table. diskinfo.h(451): Failed to init GPT style table. diskinfo.h(451): Failed to init GPT style table. [2 ]dyndisk.cpp(213): Failed to RegQueryValueEx on GetSysDgGuid. [0 ]ldmio.cpp(89): No dynamic disks are found. //////////////////////////////Dump Information//////////////////////////// Dump Disk: ================================================================ Disk Index Total Sector Geometry Product Name ---------- ------------ -------- ------------ 0 468862128 (223.57GB) (29185,255,63) KINGSTON SH103S3240G (Basic Disk,MBR) 1 976771055 (465.76GB) (60801,255,63) WDC WD5000BEVT-00A0RT0 (Basic Disk,MBR) 2 3907029168 (1863.02GB) (243201,255,63) WDC WD20EZRX-00D8PB0 (Basic Disk,MBR) 3 1953523055 (931.51GB) (121601,255,63) SAMSUNG HD103UJ (Basic Disk,MBR) Dump Volume: ================================================================ ID Volume File System Total Sector Used Sector Free Sector Type Status Cluster Size Volume Label -- ------ ----------- ------------ ----------- ----------- ---- ------ ------------ ------------ 0.0 C: NTFS 468856831 (223.57GB) 276993464 (132.08GB) 191863367 (91.49GB) Primary Ok,Act,Boot 8 New Kingston Windows Drive 1.0 E: NTFS 976762879 (465.76GB) 482530648 (230.09GB) 494232231 (235.67GB) Primary Ok,Act 8 WD 500 Data Drive 2.0 D: NTFS 343504895 (163.80GB) 305812640 (145.82GB) 37692255 (17.97GB) Primary Ok,Act 8 2 - TB Windows Volume 2.1 F: NTFS 3563517951 (1699.22GB) 2470326280 (1177.94GB) 1093191671 (521.27GB) Primary Ok 8 2 - TB Backup Drive 3.0 H: NTFS 1953522992 (931.51GB) 1102462216 (525.69GB) 851060776 (405.82GB) Primary Ok,Act,Sys 8 1-TB Backup Drive Dump Slice: ================================================================ ID ParentID SequenceID Offset Sector Start Sector Slice Size Unallocated -- -------- ---------- ------------- ------------ ---------- ----------- [21 ]bFind return code: 0x0132100B, MainWidget.cpp(306). diskinfo.h(451): Failed to init GPT style table. diskinfo.h(451): Failed to init GPT style table. diskinfo.h(451): Failed to init GPT style table. diskinfo.h(451): Failed to init GPT style table. [2 ]dyndisk.cpp(213): Failed to RegQueryValueEx on GetSysDgGuid. [0 ]ldmio.cpp(89): No dynamic disks are found. //////////////////////////////Dump Information//////////////////////////// Dump Disk: ================================================================ Disk Index Total Sector Geometry Product Name ---------- ------------ -------- ------------ 0 468862128 (223.57GB) (29185,255,63) KINGSTON SH103S3240G (Basic Disk,MBR) 1 976771055 (465.76GB) (60801,255,63) WDC WD5000BEVT-00A0RT0 (Basic Disk,MBR) 2 3907029168 (1863.02GB) (243201,255,63) WDC WD20EZRX-00D8PB0 (Basic Disk,MBR) 3 1953523055 (931.51GB) (121601,255,63) SAMSUNG HD103UJ (Basic Disk,MBR) Dump Volume: ================================================================ ID Volume File System Total Sector Used Sector Free Sector Type Status Cluster Size Volume Label -- ------ ----------- ------------ ----------- ----------- ---- ------ ------------ ------------ 0.0 C: NTFS 468856831 (223.57GB) 276998680 (132.08GB) 191858151 (91.49GB) Primary Ok,Act,Boot 8 New Kingston Windows Drive 1.0 E: NTFS 976762879 (465.76GB) 482530648 (230.09GB) 494232231 (235.67GB) Primary Ok,Act 8 WD 500 Data Drive 2.0 D: NTFS 343504895 (163.80GB) 305812640 (145.82GB) 37692255 (17.97GB) Primary Ok,Act 8 2 - TB Windows Volume 2.1 F: NTFS 3563517951 (1699.22GB) 2470326280 (1177.94GB) 1093191671 (521.27GB) Primary Ok 8 2 - TB Backup Drive 3.0 H: NTFS 1953522992 (931.51GB) 1102462224 (525.69GB) 851060768 (405.82GB) Primary Ok,Act,Sys 8 1-TB Backup Drive Dump Slice: ================================================================ ID ParentID SequenceID Offset Sector Start Sector Slice Size Unallocated -- -------- ---------- ------------- ------------ ---------- ----------- [2 ]!(::GetFileAttributesA(sCurPath) == INVALID_FILE_ATTRIBUTES) return code: 0x00000000, NetworkMgr.cpp(199). Backup Parameters: IsSecBySec = 0 IsIgnoreBadSec = 1 IsUseSysVss = 1 IsSilenceMod = 0 IsCheckImgAfter = 0 IsPrecisionMod = 0 IsSystemBackup = 1 MediaType = 0 BackupType = 0 CompressLevel = 1 EncryptLevel = 0 SplitFileSize = 0 NetWriteSpeed = 0 DependencyVer = -1 VolumeCount = 2 PasswordProtect = 0 TempFolder = C:\Users\Mike\AppData\Local\Temp\ ImgFilePath = H:\Aomei Backups\My System Backup\System Backup(2)\ Backup Volume 0: IsDynamic = 0 IsPrimary = 1 IsHide = 0 IsActive = 1 IsSystem = 0 IsBoot = 1 IsBitLocker = 0 IsFailed = 0 Filesystem = 1 StartSector = 0x800 TotalSectors = 0x1BF22FFF PtTotalSectors = 0x1BF23000 UsedSectors = 0x108295B8 DiskIndex = 0x0 DiskSignature = 0xE8E864F9 ClusterSize = 0x8 PartType = 0x7 DriveLetter = 0x43,C Backup Volume 1: IsDynamic = 0 IsPrimary = 1 IsHide = 0 IsActive = 1 IsSystem = 1 IsBoot = 0 IsBitLocker = 0 IsFailed = 0 Filesystem = 1 StartSector = 0x3F TotalSectors = 0x74706530 PtTotalSectors = 0x74706530 UsedSectors = 0x41B63D08 DiskIndex = 0x3 DiskSignature = 0xC0CD03B ClusterSize = 0x8 PartType = 0x7 DriveLetter = 0x48,H [18 ]vtrImgList.size()>0 return code: 0x00DA100B, ImageReaderHelp.cpp(218). [18 ]SearchImageFiles(wsPath, wsTaskName, stGuid, m_vtrImageList) return code: 0x00DA100B, ImageReaderHelp.cpp(62). [18 ]FileList.size() return code: 0x0240100B, ImageReaderHelp.cpp(576). diskinfo.h(451): Failed to init GPT style table. diskinfo.h(451): Failed to init GPT style table. diskinfo.h(451): Failed to init GPT style table. diskinfo.h(451): Failed to init GPT style table. [2 ]dyndisk.cpp(213): Failed to RegQueryValueEx on GetSysDgGuid. [0 ]ldmio.cpp(89): No dynamic disks are found. //////////////////////////////Dump Information//////////////////////////// Dump Disk: ================================================================ Disk Index Total Sector Geometry Product Name ---------- ------------ -------- ------------ 0 468862128 (223.57GB) (29185,255,63) KINGSTON SH103S3240G (Basic Disk,MBR) 1 976771055 (465.76GB) (60801,255,63) WDC WD5000BEVT-00A0RT0 (Basic Disk,MBR) 2 3907029168 (1863.02GB) (243201,255,63) WDC WD20EZRX-00D8PB0 (Basic Disk,MBR) 3 1953523055 (931.51GB) (121601,255,63) SAMSUNG HD103UJ (Basic Disk,MBR) Dump Volume: ================================================================ ID Volume File System Total Sector Used Sector Free Sector Type Status Cluster Size Volume Label -- ------ ----------- ------------ ----------- ----------- ---- ------ ------------ ------------ 0.0 C: NTFS 468856831 (223.57GB) 276998704 (132.08GB) 191858127 (91.49GB) Primary Ok,Act,Boot 8 New Kingston Windows Drive 1.0 E: NTFS 976762879 (465.76GB) 482530648 (230.09GB) 494232231 (235.67GB) Primary Ok,Act 8 WD 500 Data Drive 2.0 D: NTFS 343504895 (163.80GB) 305812640 (145.82GB) 37692255 (17.97GB) Primary Ok,Act 8 2 - TB Windows Volume 2.1 F: NTFS 3563517951 (1699.22GB) 2470326280 (1177.94GB) 1093191671 (521.27GB) Primary Ok 8 2 - TB Backup Drive 3.0 H: NTFS 1953522992 (931.51GB) 1102462224 (525.69GB) 851060768 (405.82GB) Primary Ok,Act,Sys 8 1-TB Backup Drive Dump Slice: ================================================================ ID ParentID SequenceID Offset Sector Start Sector Slice Size Unallocated -- -------- ---------- ------------- ------------ ---------- ----------- AsyncDeque.h(206): OpenThreadToken failed, errcode: 1008 AsyncDeque.h(54): OpenThreadToken failed, errcode: 1008 [1008 ]BrVol.cpp(700): Total Sectors:173940824 diskinfo.h(451): Failed to init GPT style table. diskinfo.h(451): Failed to init GPT style table. diskinfo.h(451): Failed to init GPT style table. diskinfo.h(451): Failed to init GPT style table. [2 ]dyndisk.cpp(213): Failed to RegQueryValueEx on GetSysDgGuid. [0 ]ldmio.cpp(89): No dynamic disks are found. //////////////////////////////Dump Information//////////////////////////// Dump Disk: ================================================================ Disk Index Total Sector Geometry Product Name ---------- ------------ -------- ------------ 0 468862128 (223.57GB) (29185,255,63) KINGSTON SH103S3240G (Basic Disk,MBR) 1 976771055 (465.76GB) (60801,255,63) WDC WD5000BEVT-00A0RT0 (Basic Disk,MBR) 2 3907029168 (1863.02GB) (243201,255,63) WDC WD20EZRX-00D8PB0 (Basic Disk,MBR) 3 1953523055 (931.51GB) (121601,255,63) SAMSUNG HD103UJ (Basic Disk,MBR) Dump Volume: ================================================================ ID Volume File System Total Sector Used Sector Free Sector Type Status Cluster Size Volume Label -- ------ ----------- ------------ ----------- ----------- ---- ------ ------------ ------------ 0.0 C: NTFS 468856831 (223.57GB) 280327176 (133.67GB) 188529655 (89.90GB) Primary Ok,Act,Boot 8 New Kingston Windows Drive 1.0 E: NTFS 976762879 (465.76GB) 482530648 (230.09GB) 494232231 (235.67GB) Primary Ok,Act 8 WD 500 Data Drive 2.0 D: NTFS 343504895 (163.80GB) 305812640 (145.82GB) 37692255 (17.97GB) Primary Ok,Act 8 2 - TB Windows Volume 2.1 F: NTFS 3563517951 (1699.22GB) 2470326360 (1177.94GB) 1093191591 (521.27GB) Primary Ok 8 2 - TB Backup Drive 3.0 H: NTFS 1953522992 (931.51GB) 1216486320 (580.07GB) 737036672 (351.45GB) Primary Ok,Act,Sys 8 1-TB Backup Drive Dump Slice: ================================================================ ID ParentID SequenceID Offset Sector Start Sector Slice Size Unallocated -- -------- ---------- ------------- ------------ ---------- ----------- AsyncDeque.h(206): OpenThreadToken failed, errcode: 1008 AsyncDeque.h(54): OpenThreadToken failed, errcode: 1008 [112 ]LastError return code: 0x00000070, BrFileWin.cpp(223). [112 ]m_pFile->Write(Buffer, BufLen) return code: 0x00E3102A, ImageFile.cpp(312).