You have my sincere sympathies (I realise that won't help). I have spent all day trying to get my laptop sorted since a Windows 10 update yesterday sent it haywire, and then John Lewis technical experts (hollow laugh) finished the job by walking me through what turned out to be a factory reset instead of a system restore, despite my frequent queries as to whether they were absolutely sure that this was going to take it back to where it was at 9am yesterday. They assured me it would and that all my saved passwords etc would still be there (another hollow laugh). They are giving me twenty pounds compensation, which hardly compensates for the nightmare day I have had (still ongoing). At least I keep clues to all my many passwords on a spreadsheet, GRRRRRRRRR.