Today, we would like to tell you about what a bug 0x80070005 Windows 10 is, because it's a kind of common problem that manifests itself as an error that occurs when you try: update the system or restore OS. Accordingly, whatever error you have, in any case, its solution is likely to be identical to what we will describe below.
How to fix the error 0x80070005 when you activate and update Windows 10
Initially, we are downloading a utility called subinacl.exe. You can download subinacl.exe from the official site (the utility is free).
Once the utility is downloaded, install it. The installation is fairly simple and only takes a couple of clicks. The only time when installing the utility is that, ideally, it needs to be installed closer to the "root of the system", as an option, maybe this way: "C: \ subinacl \". 
Now, you need to open a notepad and write the following code into it:
@echo off
Set OSBIT = 32 IF exist "% ProgramFiles (x86)%" set OSBIT = 64 Set RUNNINGDIR =% ProgramFiles% IF% OSBIT% == 64 set RUNNINGDIR =% ProgramFiles (x86)% C: \ subinacl \ subinacl.exe / subkeyreg "HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Component Based Servicing" / grant = "nt service \ trustedinstaller" = f
@Echo Gotovo. @ Pause
In order to save everything correctly in notepad, do the following: click on the "File" button in Notepad -> select "Save As" -> as soon as the dialog box opens, you should select "All files" in the " "-> specify the name of the file you created, but at the same time, the file extension should be" .bat "-> save the file on the" Desktop ". 
Now, you need to click the RMB on the created file with the .bat extension and select the item "Run as Administrator" in the context menu. Wait until the process is over and you see "Gotovo" on the monitor screen, after which you can click on any button on the keyboard.
Now, you need to close the command prompt and reboot Windows 10.
If you still have the error 0x80070005 Windows 10 left, then we advise you to make a backup copy of the system and use the same method of error elimination described above, but using the following code:
@echo off
C: \ subinacl \ subinacl.exe / subkeyreg HKEY_LOCAL_MACHINE / grant = administrators = f C: \ subinacl \ subinacl.exe / subkeyreg HKEY_CURRENT_USER / grant = administrators = f C: \ subinacl \ subinacl.exe / subkeyreg HKEY_CLASSES_ROOT / grant = administrators = f C: \ subinacl \ subinacl.exe / subdirectories% SystemDrive% / grant = administrators = f
C: \ subinacl \ subinacl.exe / subkeyreg HKEY_LOCAL_MACHINE / grant = system = f C: \ subinacl \ subinacl.exe / subkeyreg HKEY_CURRENT_USER / grant = system = f C: \ subinacl \ subinacl.exe / subkeyreg HKEY_CLASSES_ROOT / grant = system = f C: \ subinacl \ subinacl.exe / subdirectories% SystemDrive% / grant = system = f
@Echo Gotovo. @ Pause
As soon as the process is launched, you will see that the access rights to the registry keys of the OS have changed in the chest of drawers. As soon as everything is over, you can press any button on the keyboard to check whether the error has gone or not. 
Please note that the second way we are trying to fix the error 0x80070005 can be fatal for your Windows 10 system, and therefore it is necessary to create a backup copy of the OS so that you do not have to work without a working system at all!
