Cannot upgrade from W7 to W10

Having a nightmare trying to do this. The PC has an SSD with C: and D: on. C: has Windows and programs that don't offer a choice of where to install, D: has my Lightroom Catalogue and programs which offer a choice. C: has 25.4 of 94.6 GN free, D: has 4.57 of 17GB free.

It also has two mirrored HHDs with E: on, which has a Users folder with my normal user, various other folders and SQL Server.

I get 'You're good to go' - my PC meets requirements.

With all the disks connected it goes through the download, through the 'installing' bit and then boots make into Windows 7 with an error 8007001F.

If I disconnect the two HDDs then it doesn't get as far as trying to update - it seems to fall over downloading the update. Do I not have enough disk space for it? Thought I needed 20GB, I have more than that, and if I didn't have enough would I get the 'Good to go' message?

I'm so frustrated and so hoping I don't have to wipe C: and start again.

Hmmm.... The Windows update screen says the W10 update is 2,609 MB. I think I don't have enough free room for it.

I do have 6.9GB in pagefile.sys and 5.2 in hiberfile.sys. If I turn off Hibernation for now I should lose hiberfile.sys which should give me enough spare room.

But before I start hacking around with my system, is there anything else obvious staring me in the face?

(there was a plus to opening the case, I got the USB3 header connected so the USB3 port on the case is working now :) )

Superfly said:

I would just download the ISO of the same edition and upgrade from there. That upgrade assistant can be finicky.

Can you give me a URL please?

Thanks. I decided to have a go first after turning off Hibernation which upped the free space on c: to just over 30GB and at present the download is coming up to 95% complete, so free space must have been an issue. Should find out pretty soon if it works or if I need to go the route you have pointed out.

It won't upgrade. I've downloaded the .iso, had to use a different utility to mount it as the MS one kept coming up 'blocked', it chunters away and then reboots into W7. The newest log file in C:\Windows is setupact.log which contains the following:

2016-01-31 11:56:22, Info UI Determining whether we should run ConX or legacy setup
2016-01-31 11:56:22, Info UI Will launch ConX setup experience
2016-01-31 11:56:22, Info UI Launching ConX setup experience
2016-01-31 11:56:22, Info UI Launching U:\Sources\SetupPrep.exe
2016-01-31 12:09:42, Info MIG MigHost started with command line: {81C640D5-F459-40C9-9808-CF8EC2F23B3C} /InitDoneEvent:MigHost.{81C640D5-F459-40C9-9808-CF8EC2F23B3C}.Event /ParentPID:316
2016-01-31 12:09:42, Info MIG MigHost: CMigPluginSurrogate::Init: Successfully initialized surrogate.
2016-01-31 12:09:42, Info MIG MigHost: Initialized successfully with CLSID[{81C640D5-F459-40C9-9808-CF8EC2F23B3C}] and LogDir=[]
2016-01-31 12:09:42, Info MIG MigHost: CMigPluginSurrogate::LoadDllServer in progress: BinaryPath=[C:\$WINDOWS.~BT\Sources\ReplacementManifests\Microsoft-Windows-RasServer-MigPlugin\RasMigPlugin.dll], CLSID=[{D26AA4A5-92AD-48DB-8D59-95EF0DCE6939}], ApartmentThreadingModel=[0].
2016-01-31 12:09:42, Info MIG MigHost: CMigPluginSurrogate::COMGenericThreadingHostThreadProc: ThreadID=[0x13c4], Server=[C:\$WINDOWS.~BT\Sources\ReplacementManifests\Microsoft-Windows-RasServer-MigPlugin\RasMigPlugin.dll], CLSID=[{D26AA4A5-92AD-48DB-8D59-95EF0DCE6939}], ApartmentThreadingModel=[0]
2016-01-31 12:09:42, Info MIG MigHost: CMigPluginSurrogate::LoadAndRegisterServerInThreadContext: Loaded server(C:\$WINDOWS.~BT\Sources\ReplacementManifests\Microsoft-Windows-RasServer-MigPlugin\RasMigPlugin.dll)
2016-01-31 12:09:42, Error [0x08085f] MIG MigHost: CMigPluginSurrogate::LoadAndRegisterServerInThreadContext: LoadLibraryExW(C:\$WINDOWS.~BT\Sources\ReplacementManifests\Microsoft-Windows-RasServer-MigPlugin\RasMigPlugin.dll, LOAD_WITH_ALTERED_SEARCH_PATH) failed gle=0x7f.[gle=0x0000007f]
2016-01-31 12:09:42, Error [0x080863] MIG MigHost: CMigPluginSurrogate::COMGenericThreadingHostThreadProc: LoadAndRegisterServerInThreadContext() failed hr=0x8007007f.[gle=0x0000007f]
2016-01-31 12:09:42, Info MIG MigHost: CMigPluginSurrogate::LoadDllServer finished: Result=[0x8007007f].
2016-01-31 12:09:42, Info MIG MigHost: Exiting process.

Should add that I had stopped MSE and used right-click -> Run as administrator the last time, even though I was logged into an Administrator user.

Oriental Slave said:

Should add that I had stopped MSE and used right-click -> Run as administrator the last time, even though I was logged into an Administrator user.

And of course the screen. :) Have a horrid feeling this is heading towards a clean W7 install. There is nothing unusual in the PC - at least I don't think there is:

W7 Pro x64 SP1 up-to-date
AMD A10-7800
8GB dual-channel DDR3 RAM
Gigabyte F2A88XM-D3H mobo with ATI AMD Radeon R7 Graphics
2 screens
Samsung 850 EVO 120G SSD
TSSTcorp CD Rom

There are also two mirrored HDDs but I've been trying to update with them disconnected.

I've burnt a DVD from the download, will try that as well instead of the ISO mounted as a drive.