This is probably the 10th OS update I'm going through and the most damaging one. Following the upgrade all apps seem to have re-opened, as expected, with the exception of Notes. On a close inspection, 1.5 years worth of notes containing both client and personal sensitive data, notes, company, healthcare, interview notes, research, encrypted / unique keys and credentials were removed. Overall, probably in the range of $100k++ worth of losses. The Notes were saved locally, and not through iCloud. They were however displayed under the iCloud 'Notes' section. I tried all methods to restore the data but nothing worked so far. I've ordered an SSD for Time Machine. What are my options?