Articles in Systems | UserComp.com

Shrinking a Snapshot of a VDI in VirtualBox

Shrinks VirtualBox VDI file size by compacting the base disk after deleting snapshots and freeing guest space.

Is my cable or iGPU at fault here?

Resolve Linux multi-monitor black screens by distinguishing faulty HDMI cables from iGPU or driver failures using command-line diagnostics.

Text Columns Not Working Unless Cells are Double-Clicked: A Windows Event Log CSV Import Issue

Fixes misaligned columns in Windows Event Log CSV imports caused by unescaped newlines in PowerShell exports.

Windows 11: Desktop Machine Randomly Plays Notification Chiming Sounds

Resolve Windows 11 random notification chimes by identifying silent triggers from background apps and fixing corrupted system sound events.

Windows 11 and iTunes: Resolving Compatibility Issues

Resolve Windows 11 iTunes device detection failures by verifying USB connections, reinstalling Apple drivers, and restarting the Apple Mobile Device Service.

Upgrading SSD with Windows 11: Keeping Offline License

Clone an existing SSD to a new drive to preserve Windows 11 offline license activation tied to the motherboard.

Windows Outdated: How to Update Your Operating System

Resolve Windows 10 update failures and install missing security patches using the Settings interface or troubleshooter.

Enabling Danish Characters in Cygwin/Bash Environment: A Quick Guide

Fix garbled Danish characters in Cygwin Bash by setting the LANG environment variable to da_DK.UTF-8.

Windows 11 and Dual Boot: Keep Installs on Second PC

Resolve confusion about maintaining separate Windows 11 installations on two distinct physical computers by ensuring hardware isolation and proper licensing.

Optimizing Performance for Linux Systems

Resolve Linux performance bottlenecks by tuning kernel parameters, I/O schedulers, and file system configurations to reduce latency and improve throughput.

Change Decimal Separator in Windows 11

Resolve incorrect number formatting by changing the decimal separator in Windows 11 via Region settings.

Automatically install *.pkg via shell

Automate silent macOS .pkg installations via the terminal using sudo installer to bypass GUI prompts for non-interactive deployments.

How to Delete All Words Starting with a Specific String in a File

Remove all words starting with a specific string from a file using sed.

Sudo asks for password, even the ssh key method is setup for newly created user

Fix sudo password prompts for new users by adding them to the sudo group and configuring NOPASSWD in /etc/sudoers.

7-Zip Command Line: Files Not Included When Compressing Subfolders

Resolve missing files in 7-Zip archives by adding the -r switch to enable recursive compression of subfolders.

Moving Windows 11 Storage Spaces to Windows Server 2022 Storage Pools

Resolves the inability to directly migrate Windows 11 Storage Spaces to Windows Server 2022 by outlining a manual backup and rebuild process.

Java Application Requires Pinging Third-Party Websites: Squid Proxy Setup with Basic Auth for Enhanced Security

Configure Squid proxy with basic authentication to secure Java application outbound HTTP requests.

How to Transpose Rows/Columns in Notepad++ using Python Script Plugin

Transpose rows and columns in Notepad++ using a Python Script to restructure data without manual editing.

Windows Does Not Come Back Into Hibernation After Booting to Another Windows

Resolve Windows failure to resume from hibernation after dual-booting by disabling Fast Startup and clearing corrupted hiberfil.sys files.

OpenBox Hides Cursor on Raspberry Pi: A Tech Support Query

Resolve the OpenBox cursor visibility issue on Raspberry Pi by installing and configuring unclutter in the autostart file.

Recovering Windows 10 EFI Bootloader after Installing Linux

Restores Windows 10 EFI bootloader after Linux installation by mounting the ESP and running bcdboot to fix dual-boot access.

Measure Max Memory Usage of a Running GCC-Bookworm Process in a Docker Image

Measure peak memory usage of a specific GCC process in a Debian Bookworm Docker container using /usr/bin/time or /proc.

Troubleshooting FFmpeg: Why isn't 'ffmpeg -i input.mkv -c:copy output.mp4' working?

Resolve FFmpeg errors when copying MKV to MP4 by re-encoding TrueHD audio to AAC or dropping unsupported streams.

Discovering Network Devices: Protocols Used and How to Hide Your Device

Prevent network device enumeration by disabling LLDP, CDP, and SNMP listeners to hide your device from discovery protocols.

Can I copy paste 200GB+ from one disk to another in Windows?

Resolve Windows copy-paste failures for files over 200GB by using Robocopy or TeraCopy to bypass memory limits and ensure data integrity.

How to Install Mercusys WiFi Adapter: Step-by-Step Guide

Resolves Mercusys WiFi adapter connectivity issues on Linux by guiding users to identify chipsets and install correct drivers.

How to disable BitLocker system drive encryption on Windows 10 Home

Disable BitLocker system drive encryption on Windows 10 Home using the manage-bde command in an elevated Command Prompt.

Improving Media Players with FFmpeg Kernel Driver API?

Resolve architectural conflicts when attempting to integrate FFmpeg with kernel drivers by using standard hardware acceleration APIs like VAAPI and DXVA.

Keyboard Stops Working Randomly - Troubleshooting Guide

Resolve random keyboard disconnections in Windows 11 by updating drivers, disabling USB selective suspend, and verifying hardware connections.

X11 Forwarding from a Remote Linux Server to a WSL2 Desktop

Resolve X11 forwarding failures from remote Linux servers to WSL2 by configuring VcXsrv and dynamic DISPLAY variables.

Understanding the .ms-ad Folder in Windows 11 User Folders

Clarifies that the .ms-ad folder does not exist in Windows 11 and identifies real sources of confusion like Active Directory profile directories.

MacSoma (14.1) Keep Getting Hacked: Picture Disappearances, Unknown User Logins

Resolve unauthorized logins and disappearing files on macOS 14.1 by isolating the network, removing malicious profiles, and auditing user accounts to stop data exfiltration.

Understanding and Using SEBOOL Settings in Tech Support

Resolve SELinux AVC denials for services like HTTPD by identifying and enabling specific boolean flags to grant necessary permissions without disabling security policies.

What is the Difference Between GeForce Game Ready Driver and NVIDIA Studio Driver?

Resolve conflicts between gaming performance and creative application stability by selecting the correct NVIDIA driver branch.

Resolving Windows 10 Local Network Sharing Issues

Fix Windows 10 local network sharing failures by setting the network profile to Private, enabling file and printer sharing in advanced settings, and verifying required services are running.

How to Recover Data from a Failed NAS with RAID 1 Configuration

Recover data from a failed Seagate NAS with RAID 1 by connecting one drive to Linux and mounting it read-only.

How to Install Specific Linux Kernel Headers

Resolve compilation failures for external kernel modules by installing the exact Linux kernel headers matching the running system version.

Why is my domain URL still rendering a 404 page after uninstalling nginx?

Resolve persistent 404 errors after uninstalling nginx by stopping the service, purging configuration files, and ensuring Apache binds to port 80.

Balancing Shop A and Shop B Transaction Counts

Resolve transaction count disparities between Shop A and Shop B by normalizing data, creating pivot tables, and applying variance adjustments.

Bluetooth Suddenly Stops Working on Windows 8.1

Fix Bluetooth mouse connectivity issues on Windows 8.1 by restarting the support service, updating drivers, and disabling power management settings.

How to Set Up a Wireless Access Point in Kali Linux

Configure Kali Linux to create a wireless access point with hostapd, dnsmasq, and iptables NAT for internet sharing.

Set default text editor in Preferred Applications in MATE

Set vim as the default text editor in MATE by configuring Preferred Applications with a terminal wrapper to ensure proper execution.

Split WireGuard Tunnel: Allowing Access to WG Server

Resolve inability to access the WireGuard server's local IP by adding it to the client AllowedIPs list.

Automating WinSCP FTP Transfers with Powershell: Variable Space-Containing Paths Causing Issues

Resolve WinSCP FTP transfer failures caused by spaces in file paths when using PowerShell command-line execution.

Optimizing Microsoft Remote Desktop (Windows App) Storage on Mac

Resolve Microsoft Remote Desktop storage warnings on Mac by clearing the ~/Library/Containers/com.microsoft.rdc.macos/Data/tmp cache folder.

Troubleshooting HDR Luminance Levels Mapping/Scaling while Playing HDR on PC

Resolve washed out or clipped HDR images on PC by fixing luminance mapping through hardware verification, OS settings, and correct media player configuration.

Understanding the 14-Digit Time Format in Windows Registry

Convert 14-digit Windows Registry FILETIME timestamps to readable dates using PowerShell for accurate Office 365 metadata analysis.

Would Windows Defender Pop Up When Trying to Empty Recycle Bin in Windows 10?

Resolve Windows Defender blocking Recycle Bin emptying by fixing real-time protection settings, scanning for malware, and repairing corrupted system files.

Connecting a Local Postgres DB to a Django-based Docker Project on Windows Machines

Resolve Postgres connection refused errors in Django Docker containers on Windows by using host.docker.internal and configuring Postgres network access.

Troubleshooting OpenVPN Connection on Raspberry Pi for Specific Device Subnet

Fix OpenVPN subnet connectivity on Raspberry Pi by enabling IP forwarding, configuring firewall rules, and resolving DNS issues.