Error 80070002, sfc /scannow not working. Can't do repair install

Hi y'all!

I have tried to explore the SevenForums database for the similar problem but no success so far..

I cannot update my system. Running Windows 7 Ultimate x64. The Windows update gives error 80070002. I have even tried to do the repair install, but the install program just gives me the error message:
'Setup can't continue. Restart the computer and restart Setup. When prompted, try getting the latest updates.'

Sfc /scannow gives this:
'Windows Resource Protection could not perform the requested operation.'

I have also tried to run the System Update Readiness Tool, but no change. The problem just persists.

The cbs.log file gives several rows of errors when running sfc /scannow:
2017-02-03 18:30:12, Error CSI 00000027 (F) STATUS_OBJECT_NAME_NOT_FOUND #387638# from Windows::Rtl::SystemImplementation:irectRegistryProvider::SysOpenKey(flg = (AllowAccessDenied), key = {provider=NULL, handle=0}, da = (KEY_READ|DELETE|KEY_WOW64_64KEY), oa = @0x8dd1b0->OBJECT_ATTRIBUTES {s:48; rd:NULL; on:[203]"\Registry\Machine\COMPONENTS\DerivedData\VersionedIndex\6.1.7601.18766 (win7sp1_gdr.150217-1551)\ComponentFamilies\amd64_atiilhag.inf-languagepack_31bf3856ad364e35_en-us_e2a8495c7773c833\p!6.1.7600.16385"; aOBJ_CASE_INSENSITIVE)}, disp = Unmapped disposition: 9294160 (0x008dd150))[gle=0xd0000034]
2017-02-03 18:30:12, Error CSI 00000028@2017/2/3:16:30:12.433 (F) d:\win7sp1_gdr\base\wcp\sil\merged\ntu\ntsystem.cpp(3676): Error STATUS_OBJECT_NAME_NOT_FOUND originated in function Windows::Rtl::SystemImplementation:irectRegistryProvider::SysOpenKey expression: (null)
[gle=0x80004005]
2017-02-03 18:30:12, Error CSI 00000029 (F) STATUS_OBJECT_NAME_NOT_FOUND #387637# from Windows::Rtl::SystemImplementation:irectRegistryProvider::SysOpenKey(flg = 0, key = {provider=NULL, handle=0}, da = (KEY_READ|DELETE|KEY_WOW64_64KEY), oa = @0x8dd1b0->OBJECT_ATTRIBUTES {s:48; rd:NULL; on:[203]"\Registry\Machine\COMPONENTS\DerivedData\VersionedIndex\6.1.7601.18766 (win7sp1_gdr.150217-1551)\ComponentFamilies\amd64_atiilhag.inf-languagepack_31bf3856ad364e35_en-us_e2a8495c7773c833\p!6.1.7600.16385"; aOBJ_CASE_INSENSITIVE)}, disp = Unmapped disposition: 9295224 (0x008dd578))[gle=0xd0000034]
2017-02-03 18:30:12, Error CSI 0000002a@2017/2/3:16:30:12.488 (F) d:\win7sp1_gdr\base\wcp\sil\merged\ntu\ntsystem.cpp(3676): Error STATUS_OBJECT_NAME_NOT_FOUND originated in function Windows::Rtl::SystemImplementation:irectRegistryProvider::SysOpenKey expression: (null)
[gle=0x80004005]
2017-02-03 18:30:12, Error CSI 0000002b (F) STATUS_OBJECT_NAME_NOT_FOUND #387636# from Windows::Rtl::SystemImplementation::CKey::OpenExistingKey(f = 2, da = (KEY_READ|DELETE), oa = @0x8dd610, key = NULL, disp = (null))[gle=0xd0000034]
2017-02-03 18:30:12, Error CSI 0000002c (F) STATUS_OBJECT_NAME_NOT_FOUND #387631# from Windows::Rtl::SystemImplementation::CKey:eleteRecursively(...)[gle=0xd0000034]
2017-02-03 18:30:12, Error CSI 0000002d (F) STATUS_OBJECT_NAME_NOT_FOUND #330009# from Windows::Rtl::SystemImplementation::CKey:eleteRecursively(...)[gle=0xd0000034]
2017-02-03 18:30:21, Error CSI 0000002e (F) STATUS_OBJECT_NAME_NOT_FOUND #453619# from Windows::Rtl::SystemImplementation:irectRegistryProvider::SysOpenKey(flg = (AllowAccessDenied), key = {provider=NULL, handle=0}, da = (KEY_READ|DELETE|KEY_WOW64_64KEY), oa = @0x8dd300->OBJECT_ATTRIBUTES {s:48; rd:NULL; on:[203]"\Registry\Machine\COMPONENTS\DerivedData\VersionedIndex\6.1.7601.18766 (win7sp1_gdr.150217-1551)\ComponentFamilies\amd64_atiilhag.inf-languagepack_31bf3856ad364e35_en-us_e2a8495c7773c833\p!6.1.7600.16385"; aOBJ_CASE_INSENSITIVE)}, disp = Unmapped disposition: 9294496 (0x008dd2a0))[gle=0xd0000034]
2017-02-03 18:30:21, Error CSI 0000002f@2017/2/3:16:30:21.505 (F) d:\win7sp1_gdr\base\wcp\sil\merged\ntu\ntsystem.cpp(3676): Error STATUS_OBJECT_NAME_NOT_FOUND originated in function Windows::Rtl::SystemImplementation:irectRegistryProvider::SysOpenKey expression: (null)
[gle=0x80004005]
2017-02-03 18:30:21, Error CSI 00000030 (F) STATUS_OBJECT_NAME_NOT_FOUND #453618# from Windows::Rtl::SystemImplementation:irectRegistryProvider::SysOpenKey(flg = 0, key = {provider=NULL, handle=0}, da = (KEY_READ|DELETE|KEY_WOW64_64KEY), oa = @0x8dd300->OBJECT_ATTRIBUTES {s:48; rd:NULL; on:[203]"\Registry\Machine\COMPONENTS\DerivedData\VersionedIndex\6.1.7601.18766 (win7sp1_gdr.150217-1551)\ComponentFamilies\amd64_atiilhag.inf-languagepack_31bf3856ad364e35_en-us_e2a8495c7773c833\p!6.1.7600.16385"; aOBJ_CASE_INSENSITIVE)}, disp = Unmapped disposition: 9295560 (0x008dd6c8))[gle=0xd0000034]
2017-02-03 18:30:21, Error CSI 00000031@2017/2/3:16:30:21.549 (F) d:\win7sp1_gdr\base\wcp\sil\merged\ntu\ntsystem.cpp(3676): Error STATUS_OBJECT_NAME_NOT_FOUND originated in function Windows::Rtl::SystemImplementation:irectRegistryProvider::SysOpenKey expression: (null)
[gle=0x80004005]
2017-02-03 18:30:21, Error CSI 00000032 (F) STATUS_OBJECT_NAME_NOT_FOUND #453617# from Windows::Rtl::SystemImplementation::CKey::OpenExistingKey(f = 2, da = (KEY_READ|DELETE), oa = @0x8dd760, key = NULL, disp = (null))[gle=0xd0000034]
2017-02-03 18:30:21, Error CSI 00000033 (F) STATUS_OBJECT_NAME_NOT_FOUND #453612# from Windows::Rtl::SystemImplementation::CKey:eleteRecursively(...)[gle=0xd0000034]
2017-02-03 18:30:21, Error CSI 00000034 (F) STATUS_OBJECT_NAME_NOT_FOUND #395990# from Windows::Rtl::SystemImplementation::CKey:eleteRecursively(...)[gle=0xd0000034]
2017-02-03 18:30:21, Info CBS Failed to get CSI store. [HRESULT = 0x80070002 - ERROR_FILE_NOT_FOUND]
2017-02-03 18:30:21, Error CBS Failed to initialize store parameters with boot drive: and windows directory: [HRESULT = 0x80070002 - ERROR_FILE_NOT_FOUND]


What can I do? I really don't know what is going on..