Posted by jpluimers on 2026/02/25
This worked on the built-in Windows PowerShell to get the recommendation status:
$volume = Get-WmiObject -Class Win32_Volume -Filter "DriveLetter = 'C:'"
$analysis = $volume.DefragAnalysis()
$analysis.DefragAnalysis
$analysis.DefragRecommended
Without elevation token, $analysis.DefragAnalysis will be empty and $analysis.DefragRecommended will return False, but elevated it will return the analysis data and $analysis.DefragRecommended will return False or True depending on the analysis result.,
And this gets the most recent defragmentation action from the event-log:
Read the rest of this entry »
Posted in CommandLine, Development, PowerShell, Scripting, Software Development | Tagged: possible | Leave a Comment »
Posted by jpluimers on 2026/02/25
[Wayback/Archive] Airco’s massaal gebruikt voor verwarming, TNO waarschuwt voor gevolgen stroomnet
Via [Archive/Archive] Post by @ruudholswilder.bsky.social — Bluesky
Ruud Holswilder
@ruudholswilder.bsky.social
In feite is een moderne airco een lucht-lucht warmtepomp met een COP van 3,5 tot 5.
1 kWh elektriciteit wordt omgezet in 3,5 tot 5 kWh warmte.
Geen aandacht hiervoor in het artikel van NOS.
--jeroen
Posted in LifeHacker, Power User | Leave a Comment »
Posted by jpluimers on 2026/02/25
Often I need to generate passwords or uuids (on some systems called guids). I usually try to do that in a relatively platform agnostic way as I use MacOS, Windows and Linux in various mixes for many reasons (for instance that I have had developed quite hefty RSI in the early 1990s of the and the best keyboard/pointing-device combination for is the MacBook built in keyboard/touchpad combination so basically MacBooks are my window to all other operating systems).
Generating randomly with a good random number generator them makes sense as for most usage, it is important that both passwords and uuids are hard to guess which means having an entropy that is as high as possible.
A cool thing about OpenSSL is that:
- most of not all systems have it installed (it was no coincidence I published Installing OpenSSL on Windows a few days ago)
- it has a very good pseudo-random number generator and as of [Wayback/Archive] OpenSSL version 1.1.1 first released in 2018 has solved the problem around [Wayback/Archive] Random fork-safety – OpenSSLWiki, see [Wayback/Archive] Our Review of the OpenSSL 1.1.1 Random Number Generation Update – OSTIF.org.
- it supports various useful output formats
hex (hexadecimal) and base64 (next to the default of octet – or by today’s naming convention byte – output)
The easiest to generate are passwords. Yes I know that password managers can do this too, but there are some systems I cannot use them on or sync between them (don’t you love the corporate world) so my aim is to use a random password generator in a platform agnostic way which usage is easy to remember. Read the rest of this entry »
Posted in *nix, *nix-tools, Apple, base64, bash, bash, Batch-Files, Conference Topics, Conferences, Development, Encoding, Event, HEX encoding, Mac, Mac OS X / OS X / MacOS, MacBook, OpenSSL, Power User, Python, Scripting, Software Development, Windows | Leave a Comment »
The Wiert Corner - irregular stream of stuff 