Fix ReadyBoost Caching No Longer Improving Boot Speed on Windows 11

You have used ReadyBoost with a USB flash drive to speed up Windows 11 boot times, but recently the improvement has disappeared. This problem usually occurs after a Windows Update changes how the system handles external caches or after a driver update resets USB controller settings. The ReadyBoost cache may still show as configured, but … Read more

How to Whitelist a Process in PowerThrottling Settings on Windows 11

Windows 11 uses PowerThrottling to reduce energy consumption by pausing background processes. This feature can slow down or interrupt applications that need consistent CPU access. You can whitelist a process to prevent PowerThrottling from affecting it. This article explains how to add a process to the PowerThrottling exclusion list using Windows Settings and the command … Read more

Fix NDU.sys Memory Leak Reported in Perfmon on Windows 11

You open Performance Monitor Perfmon on Windows 11 and see that NDU.sys is consuming an abnormally high amount of non-paged pool memory. This memory leak can cause system slowdowns, application crashes, and even blue screen errors over time. The root cause is the Network Diagnostic Usage NDU driver, which collects telemetry about network usage and … Read more

How to Stop Defender Real-Time Scanning a Specific Build Folder on Windows 11

When you compile code frequently, Microsoft Defender Antivirus scans every new file in your build output folder. This real-time scanning can slow down builds by 20 to 50 percent because Defender checks each executable and library as it is written. The scan is triggered by file write and rename operations inside the folder. This article … Read more

How to Disable Memory Compression to Diagnose Page File Pressure on Windows 11

Memory compression in Windows 11 compresses parts of the system memory to reduce the amount of data written to the page file. When the page file grows unusually large or the system becomes sluggish under moderate memory loads, memory compression may be masking underlying page file pressure. This article explains how to temporarily disable memory … Read more

Fix Network Adapter Offload Tasks Slowing iperf Throughput on Windows 11

When you run iperf throughput tests on Windows 11, you may see results far below your network’s actual capacity. One common cause is the network adapter’s hardware offload features, such as Large Send Offload and TCP Checksum Offload. These features are designed to reduce CPU load by letting the network card handle packet processing. However, … Read more