Office 365 email in Outlook stopped working - Trusted Platform Malfunctioned...

Issue

Office 365 email account suddenly stopped working in MS Outlook (desktop app). The user got a prompt to re-enter their password. After entering the correct password, the following error came up:

Your computer's Trusted Platform Module has malfunctioned

Something went wrong
Your computer's Trusted Platform Module has malfunctioned. If this error persists, contact your system administrator with the error code 80090016.
Error code: 80090016
Server message: Keyset does not exist

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Unprotect Excel Sheet without password

Issue

A user protected a single sheet inside Excel .xlsx file and forgot the password. There are multiple ways to unprotect sheets without the password, below is just one of them. Please be aware this will not work if the whole Excel file is protected from opening (encrypted).

Unprotect Sheet

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