All articles · Page 3
Claude Desktop keeps crashing: “GPU process gone” with exit code 101457950, cause and solution
The Claude Desktop app on Windows exits completely with “GPU process gone: exitCode 101457950” (0x060C201E), often followed by the Store app repair dialog. The complete causal chain: Code Integrity blocks vk_swiftshader.dll, Chromium’s fallback chain runs out, and the built-in self-termination exits the app. With a permanent solution (switching to the classic installation without MSIX), self-diagnosis via the event log, and analysis down to the minidump.
Planning email load tests: Tools for 10,000-email bursts under Linux and Windows compared
Anyone migrating a gateway or sizing an email environment needs reliable figures rather than gut feelings. Which tools generate bursts of tens of thousands of emails, what a clean test plan looks like, and how to evaluate the results from logs.
RDP Printer Redirection: Print Through the Local PC Instead of the Remote Computer
Print jobs from the RDP session should go to the printer next to the user, not to the remote computer. The setting is found in three places: the RDP client, the .rdp file, and the target system. Also covers handling the “Unknown Publisher” warning and a troubleshooting checklist.
SMTP Load Testing with Apache JMeter in Practice: 10,000 Emails, Five Rule Paths, One HTML Report
A complete load test from A to Z: a test plan with a message mix along the ruleset paths of an encryption gateway, a portable setup without installation, 10,000 emails in a burst, and analysis using the JMeter HTML report—including the issues that actually occurred.
Reading and Understanding Your Electricity Bill: An EKZ Bill, Line by Line
Energy, grid use, metering, charges: What is really on a Swiss electricity bill, who sets each price, and which line items can be changed—plus an interactive sample bill based on the EKZ model.
Is Joining a LEG Worth It? An Honest Example Calculation
A 20 percent discount on grid usage sounds like money. The calculation based on EKZ’s offering shows that, for electricity consumers only, the LEG under the grid operator model is virtually cost-neutral, while producers fare better. The full calculation with all the numbers.
New Tool: LEG Price Calculator
Calculates in seconds what a local electricity community delivers financially: grid usage discount versus service fee, for consumers and solar producers. Preloaded with EKZ rates for 2026, all values adjustable, runs entirely in the browser.
What Are These LEGs, Anyway? Local Electricity Communities Explained
Since 2026, neighbors have been allowed to sell solar power to one another via the public grid: Local Electricity Communities (LEGs) make it possible. How 15-minute allocation works, what the 20 or 40 percent grid usage discount means, and how LEGs, ZEVs, and vZEVs differ.
August 2026 Exchange Security Updates: Pwn2Own Vulnerability Fixed, OWA Light Disabled
The August SU fixes seven vulnerabilities, including the Exchange exploit demonstrated at Pwn2Own 2026, and permanently disables OWA Light. Microsoft also explains why Exchange SUs are now released monthly and why Exchange SE CU1 is still delayed.
Analyzing Exchange Mail Flow: Message Tracking, SMTP Logs, and Receive Connectors
How to systematically determine where a message ended up in Exchange On-Premises, Hybrid, and Exchange Online: queries with sample output, how to read the SMTP log correctly, and the issues that regularly lead to incorrect conclusions.
Rebuilding Apache James Rule Sets in a Structured Way: Tools and Method
Mailet rule sets that have grown over the years contain dead paths that no one recognizes anymore. Learn how to analyze the rule set as a graph, reliably find unreachable code, and design the migration so that a single Mailet keeps the rollback path open.
What We Can Learn from Science for IT Troubleshooting
Falsifiability, control groups, confounding variables, and sampling bias: the method natural sciences have used for centuries solves exactly the problems where IT troubleshooting regularly fails, illustrated with examples from mail flow.
