How can I improve PowerShell performance without guessing?
A performance change should improve the measured workload without sacrificing correctness or wasting capacity. Which measurements and bottlenecks should be considered first?
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powershellFill handle & drag-paste don't commit in Excel desktop
I have an issue where Excel's drag-to-fill and drag-to-copy/paste don't work, but everything else does. This started suddenly this morning after 2+ years of no issues, with no updates or new installs beforehand. Symptoms: • Select a cell, drag the fill handle down - the small preview tooltip correctly shows the next value in the sequence (e.g., 3, 4, 5) as I
microsoft-365Technical question35K views3,806 votes1 answer1,320 following
Outlook classic fails on first launch after reboot: "This folder group cannot be opened. Microsoft Exchange is not available"
Since early September 2026, classic Outlook for Windows (Exchange Online, Cached Exchange Mode) repeatedly fails on the first launch after a reboot with: "Cannot start Microsoft Outlook. Cannot open the Outlook window. This folder group cannot be opened. Microsoft Exchange is not available. There are network problems, or the server computer running Microsoft
Technical question145.1K views4,165 votes2 answers2,361 following
Having difficulties with "client-only" rules in outlook
I'm pretty sure I don't have any client specific rules therein. I've read the article answer here: https://learn.microsoft.com/en-us/answers/questions/5629946/change-outlook-rule-from-client-side And, I cannot see anything on my rule that would make it client only instead of server side. Can you assist? Open attachment: User's image
Technical question55.7K views2,243 votes1 answer935 following
LaTeX formulas from Excel don't work with MS Word equation fields
I am using Office 365, and I'm having trouble using links in Excel formulas. In some older versions of MS Office, I had to paste a formula written in Excel as unformatted Unicode text (using Paste Special) and convert it to a proper formula; it worked for me, but now it doesn't convert text pasted as a link in the equation field into a proper formula. Fortun
How should I approach a PowerShell upgrade?
An upgrade needs a compatibility check, a tested release and a recovery path. Which changes deserve particular attention before the new version reaches production?