Outlook Rules: Why They Quietly Stop Working on a Shared Mailbox
Outlook rules on a shared mailbox often stop working after a migration because of how the mailbox was added, not because the rule itself was built wrong.
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File Explorer Search: Why It Misses Files That Are Right There
File Explorer search misses files that exist because most folders are not indexed, and a non-indexed search checks file names only, not what is inside them.
Outlook Autocomplete: Why the Wrong Address Keeps Coming Back
Outlook AutoComplete keeps suggesting a wrong address even after clearing the cache, because that cache is only one of three places the address can live.
PowerPoint Embedded Fonts: The Real Reason Edits Break Them
PowerPoint’s embedded fonts option has two settings, and the one most people pick quietly breaks the moment anyone edits the file on a different computer.
Excel VALUE Error: The Real Reason Switching to SUM Doesn’t Fix It
Switching a broken formula to SUM clears the VALUE error, but it does not fix the bad data, it just drops it from the total without telling anyone.
XLOOKUP Error: The Real Cost of Hiding It With IFNA
Wrapping an XLOOKUP error in IFNA is the fix almost every guide recommends, but it can turn a real data problem into a wrong answer that never shows an error.
Word Table of Contents: The Real Reason Your PDF Shows Old Numbers
Word’s table of contents can look right on screen and still print wrong, because one printing setting most people never touch decides which version ships.
Excel REF Error: The Real Fix When Ctrl+Z Stops Working
Excel’s REF error looks fixable with Ctrl+Z, but that window closes the moment AutoSave commits the change, and most guides never explain what still works.
Why Data Validation Never Stops a Paste in Excel
A dropdown list looks locked down until someone pastes into it. Excel only checks typed entries, and a paste can even delete the rule itself, not just skip it once.
Why Typing 40 Shows Up as 4000% in Excel
Percentage formatting multiplies whatever’s stored by 100 for display. Type a plain number instead of the percent sign, and the math still runs, just on the wrong starting value.