'Windows 10 update: Error C1900101-20004'

I get error code c1900101-20004 while updating from Windows 7 to Windows 10. After 85 % copy and 25 % circle, Windows 7 will set back. Here 2 logfiles. I don't know how I can Install Windows 10 now? Logfile setupact 2015-08-29 23:50:48, Info UI Determining whether we should run ConX or legacy setup 2015-08-29 23:50:48, Info UI Will launch ConX setup experience 2015-08-29 23:50:48, Info UI Launching ConX setup experience 2015-08-29 23:50:48, Info UI Launching E:SourcesSetupPrep.exe 2015-08-30 00:14:36, Info MIG MigHost started with command line: {53769869-4E09-4CCD-8E27-C005C9AC1E26} /InitDoneEvent:MigHost.{53769869-4E09-4CCD-8E27-C005C9AC1E26}.Event /ParentPID:3620 2015-08-30 00:14:36, Info MIG MigHost: CMigPluginSurrogate::Init: Successfully initialized surrogate. 2015-08-30 00:14:36, Info MIG MigHost: Initialized successfully with CLSID[{53769869-4E09-4CCD-8E27-C005C9AC1E26}] and LogDir=[] 2015-08-30 00:14:36, Info MIG MigHost: CMigPluginSurrogate::LoadDllServer in progress: BinaryPath=[C:$WINDOWS.~BTSourcesReplacementManifestsMicro soft-Windows-RasServer-MigPluginRasMigPlugin.dll], CLSID=[{D26AA4A5-92AD-48DB-8D59-95EF0DCE6939}], ApartmentThreadingModel=[0]. 2015-08-30 00:14:36, Info MIG MigHost: CMigPluginSurrogate::COMGenericThreadingHostThread Proc: ThreadID=[0xb68], Server=[C:$WINDOWS.~BTSourcesReplacementManifestsMicro soft-Windows-RasServer-MigPluginRasMigPlugin.dll], CLSID=[{D26AA4A5-92AD-48DB-8D59-95EF0DCE6939}], ApartmentThreadingModel=[0] 2015-08-30 00:14:36, Info MIG MigHost: CMigPluginSurrogate::LoadAndRegisterServerInThread Context: Loaded server(C:$WINDOWS.~BTSourcesReplacementManifest sMicrosoft-Windows-RasServer-MigPluginRasMigPlugin.dll) 2015-08-30 00:14:36, Error [0x08085f] MIG MigHost: CMigPluginSurrogate::LoadAndRegisterServerInThread Context: LoadLibraryExW(C:$WINDOWS.~BTSourcesReplacement ManifestsMicrosoft-Windows-RasServer-MigPluginRasMigPlugin.dll, LOAD_WITH_ALTERED_SEARCH_PATH) failed gle=0x7f.[gle=0x0000007f] 2015-08-30 00:14:36, Error [0x080863] MIG MigHost: CMigPluginSurrogate::COMGenericThreadingHostThread Proc: LoadAndRegisterServerInThreadContext() failed hr=0x8007007f.[gle=0x0000007f] 2015-08-30 00:14:36, Info MIG MigHost: CMigPluginSurrogate::LoadDllServer finished: Result=[0x8007007f]. 2015-08-30 00:14:38, Info MIG MigHost: Exiting process. AudMig: No audio endpoint migration settings found 0x2 AudMig: No audio endpoint migration settings found 0x2 AudMig: No audio endpoint migration settings found 0x2 AudMig: No audio endpoint migration settings found 0x2 Logfile Setuperr 2015-08-30 00:14:36, Error [0x08085f] MIG MigHost: CMigPluginSurrogate::LoadAndRegisterServerInThread Context: LoadLibraryExW(C:$WINDOWS.~BTSourcesReplacement ManifestsMicrosoft-Windows-RasServer-MigPluginRasMigPlugin.dll, LOAD_WITH_ALTERED_SEARCH_PATH) failed gle=0x7f.[gle=0x0000007f] 2015-08-30 00:14:36, Error [0x080863] MIG MigHost: CMigPluginSurrogate::COMGenericThreadingHostThread Proc: LoadAndRegisterServerInThreadContext() failed hr=0x8007007f.[gle=0x0000007f]

Make sure you have enough space in C drive for windows 10 and windows 7 old folder... this might be the case..

also Increase the size of system reserve partition with the help of easeus software or inbuilt disk management.

Then try it.

I think there is enough space. I made the system partion 200 mb, it was 100 mb

see screenhot: