Windows 10 loading problem even in safe mode

i recently disabled many services in my wondows 10 to boost my laptop then after rebooting i changed my mind and tried to restore services as it were. i used some .reg files to do so(from this link: https://www.tenforums.com/tutorials/57567-restore-default-services-windows-10-a.html )

i downloaded : https://www.tenforums.com/attachments/tutorials/132314d1493342237-restore-default-services-windows-10-a-windows_10_default_services.zip

after rebooting into windows, before lock screen shows up, it was kind of stuck. there was a blackscreen with a loading cursor which appears when i change mouse position and the mouse position restarts to center of screen about every 3 seconds and disappears.

Things I tried:(not necessary to read) so i used a bootable windows 10 usb to repair and troubleshoot first i used startup repair. it couldn't find any issues then i used command prompt to set default entry to safe mode using this command: X:\Sources> bcdedit /set {default} safeboot minimal Then i faced infinite loading when it tries to boot into safe mode(there is just a loading working animation on bottom of black screen and nothing happens! then i tried to manually set services to auto. so i went to troubleshoot again and openned cmd and typed X:\Sources> d:\windows\system32\sc.exe config (below services names one by one) start=auto (i watched services running in safe mode on another laptop and took the list) successfully-changed services: winmgmt eventlog audioendpointbuilder audiosrv profsvc usermanager systemeventsbroker rpceptmapper rpcss power plugplay lsm dcomlaunch cryptsvc

failed-to-change services:(openservice failed 1060 the specified service does not exist as an installed service) WinDefend TabletInputService StateRepository CoreMessagingRegistrar brokerinfrastructure

1_Is there a way i can solve this without installing a new windows? (like from cmd or fixing safe mode ...) if no: 2_Considering all my files are in C, is there a way to maintain my personal files (and installed programs if possible) when installing new windows? (system restore point cant complete any restoration, also no image can be found using recovery image)

system restore point error: system restore did not complete successfully. your computer's system files and settings were not changed Details: An unspecified error occured during system restore(0x80070003)

So i had to backup my files to external hdd using cmd X:\Sources>notepad and then from top choosing open file and copying finally reinstalling the whole windows!