I have a specific problem with Win 7 (along with thousands other users). My Windows 64 bit Service Pack 1 restore system doesn't work, I can't create a restore point in Windows Defence (Error 0x81000203) or create disk archive in Archivation and Restore section (Error 0x807800A1 (Shadow copy service Error 0x80042302)).
I have sufficient space and did nothing, but didn't check backup long. As I understand some "Desktop cleaner", or "System helper utility" or antivirus program deleted the VSS service by error or for user-dependence purposes, but there is not installed any now and antivirus uninstall doesn't help. I have checked event viewer for the default VSS provider and got an Error in creation of COM class VSS provider CLSID {65ee1dba-8ff4-4a58-ac1c-3470ee2f376a} SW_PROV 0x80070424 service not installed error : https://pastebin.com/0ZEDJERd
I have checked shadow copy service and restarted it (no effect), checked this solution https://answers.microsoft.com/en-us/windows/forum/all/0x80070715-for-swprvdll-troubleshooting-for/74ea72ed-8c78-4078-9b80-c93b18fe7936 with regsvr32 commands it works for first Dll's but on swprv.dll it shows 0x80070715 error (couldn't call DllRegister)
Also I have checked group policies - where isn't any and registry - HKLM\SYSTEM\CurrentControlSet\services\VSS\Providers{b5946137-7b9f-4925-af80-51abd60b20d5}\CLSID branch is on place but there isn't any section called HKLM\SYSTEM\CurrentControlSet\services\swprv
Dlls are not missing so sfc /scannow or Dism will not take effect
Thanks for help!