Guy Leech

Did you know that when you've pressed Alt + tab on Windows 11, you can then use the cursor keys to move quicker, eg down, to the tab you want whilst still pressing Alt & release Alt? Similarly, press Windows + Tab & use cursor keys to navigate around & select via window thumbnail then press Enter

Is #dedup for NTFS on Server 2025 supported by #Microsoft for #FSlogix or not? Most AI says not but fails to give a definitive reference. Was enabled & working on a system I inherited BUT there was also corruption on that volume. Surely should be ok as a file system feature invisible to FSlogix?

Well this is something that I have never seen before today in #PowerShell 5.1 & the lines causing it have been in my $profile for years. PowerShell.exe date is today - this could break a lot of scripts (as in cause them to pause f input)!! 😱

Anyone found a way to toggle the Do Not Disturb Notification setting in Windows 11? Found some stuff around setting registry values which didn't pan out & other stuff that P/Invoked WNF APIs but that failed too. Tried what I found in procmon but failed. Surely it must be possible?

He’s back. 👔 The man who started it all — @jsnover.com, Inventor of #PowerShell, will open #PSConfEU 2026 in #Wiesbaden with the keynote you don’t want to miss. 🎟️ Tickets now available → psconf.eu #Automation #IT #Germany #Europe

New Episode! 🚨 I cover layoffs from Amazon and GM, the root cause of the recent AWS outage, a concerning new Teams feature, my review of Pwn2Own Ireland 2025 and more! 🔊 Listen: on.soundcloud.com/ncOCKrv63zJM... 📺 View: youtu.be/aaLAY23ZJa4?...

Here's a typical use case for me using -Outvariable in an interactive PowerShell command line where I'm searching for a file so I want visual output as it searches but I also want the results in a variable so I can access more properties later if I need them without searching again

We're at 99 members on our new Dutch PowerShell User Group meetup, are you going to get us to 100? Join us, for our favorite price: Free, here: meetup.com/dutch-powers... And if you do, share it here! #PowerShell #DevOps

PowerShell 7.5.4 released github.com/PowerShell/P...

What's the current thinking/consensus/experience of having duplicate machine SIDs on the same subnet & members of the same domain (different hostnames & MAC & IP addresses obviously)? It's many years since @markrussinovich.bsky.social said changing SIDs wasn't necessary but what about RoW?

💡 Be Your Own Sherlock in the Realms of Microsoft Graph 👨‍🏫 @hcritter.bsky.social – Senior System Engineer at CANCOM GmbH 🗓️ 14 Oct | #PSConfEU MiniCon 👉 Free ticket: synedgy.com/psconfeu-minicon #PowerShell #Microsoft #Graph #automation

If you want to quickly figure out if & where a process is writing a logfile, create a filter (ctrl l) in @SysInternals procmon for your process(es) and also Category = Write & turn off registry & network capture in the toolbar

Any of you got experiences of packaging Adobe or AutoCAD apps into MSIX and delivering via App Attach? About to have a play myself but interested to know if others have tried. I think going App-V is probably not a sensible approach given its life expectancy.

Need to turn %USERDNSDOMAIN% into canonical form, eg for ADSI ? "DC=$(($env:USERDNSDOMAIN -split '\.') -join ',DC=')"

💡 #PowerShell Security: A Journey Through Time 👨‍🏫👨‍🏫 @miriamwiesner.bsky.social - Security Researcher at Microsoft & Anam Navied - Software Engineer, PowerShell team at Microsoft 🗓️ 14 Oct | #PSConfEU MiniCon 👉 Free ticket: synedgy.com/psconfeu-minicon #automation

London #PowerShell User Group in person Meetup is tomorrow evening www.meetup.com/powershell-l...

It seems that the long standing PowerShell 7.5.* bug where Out-Gridview doesn't function properly is fixed in 7.5.3! Hurrah! github.com/PowerShell/P...

TIL I've been using Microsoft products since 1980 when I wrote my first lines of BASIC code which was on a Commodore PET that my late (mainframe) COBOL coding father sometimes brought back from his office

Did you know that Entra ID SIDs start S-1-12-1 whereas (legacy?) AD domain and local normal accounts start S-1-5-21 ?

Multiple vulnerabilities in Dell ThinOS 10 URL: www.dell.com/support/kbdo... Classification: Critical, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 9.6

PowerShell 1 liner to clear all event logs Get-WinEvent -ListLog * -EA 0 -PipelineVariable log | %{ $log.LogName ; wevtutil.exe clear-log "$($log.LogName)" }

Ransomware Allegations Surface As Colt Outages Continue www.databreachtoday.com/ransomware-a...

the UK government has dropped its demand for a backdoor into Apple's encryption. This could open the door for Apple to bring back its Advanced Data Protection iCloud encryption to the UK for new users www.theverge.com/news/761240/...

New script, because Get-Hotfix is unhelpful, that uses Windows Update COM interface to show installed updates with various filtering options and raw/object or text output. Excludes Defender pattern updates by default github.com/guyrleech/Mi...

TIL that Get-Help (alias help) does not work in a remote PS session

Telco giant Colt suffers attack, takes systems offline www.theregister.com/2025/08/15/l...

TIL the @bsky.app Android app doesn't seem to allow selection of text in messages so making copy paste ,etc impossible which is a PITA when you want to e.g. look up a name in a search engine

www.tenable.com/blog/faq-cve...

Need the path to the user profile for the system account? (Get-CimInstance -ClassName win32_userprofile -filter "sid = 'S-1-5-18'").LocalPath Profiles for other special accounts also available that way

New episode! 🚨 I cover some issues caused by the latest Windows Updates, give an update on the M&S cyber attack, I discuss a landmark for Google's AI security platform and much more! 🔊Listen: on.soundcloud.com/F1JGGvIaVVTx... 📺View: www.youtube.com/watch?v=d43S...

Forgotten how funny @davegorman.bsky.social is - 10 minutes into an episode of Modern Life is Goodish and I'm finally smiling this Monday. Thank you sir

For anyone who went to @guyrleech.bsky.social talk on Using Powershell to Explore Windows, or if you are just curious what you missed, you can download the slides here: files.speakerdeck.com/presentation...

Slides from my "Using PowerShell to Explore Windows" workshop at @steelcon.info 2025 files.speakerdeck.com/presentation...