starts up : fixing (C) and goes no further

@sweetswinging ... have you attempted to restore your computer via saved backup? if not, try and get into recovery mode by pressing the f8 key at boot up. see if this option works. if no restore point is listed, you can open a command prompt in that same menu and type in sfc /scannow this will attempt to repair your system files and if successful, should stop the redundant repair at boot up. if these fail , you could be looking at a failing hdd and would want to do a smart disk check/ hardware check through your recovery menu. hope this helps, let us know where youre at after.