Articles about su | UserComp.com | Page [ 12 ]

Computer Start-Up: Fans Working, No Screen, Mouse, or Keyboard Response

Resolve black screen with fans running by isolating peripherals, reseating RAM, and checking power supply connections to fix POST failure.

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Calculate Cell Figures Based on Dates Using SUMIF in Tech Support

Calculate remaining target quantity by subtracting completed quantity from target quantity using a simple subtraction formula.

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Sudo User: Flag Not Using Designated User

Resolve sudo -u flag failures by verifying target user existence and correcting /etc/sudoers permissions.

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What Does 'cp -ruv --update Remove Files Destination?' Mean?

Clarifies that cp -ruv --update skips up-to-date files and never deletes existing destination files, preventing accidental data loss during recursive copies.

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Getting Started with Handle Pointer and Memory Management in Tech Support

Diagnose application crashes, memory leaks, and performance bottlenecks by understanding Windows VirtualAlloc reservation and commitment mechanics.

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Fixing Kalilinux Installation: Unable to Fetch Release

Resolve the Kali Linux installation "Unable to fetch release" error by fixing network connectivity and configuring non-free firmware sources.

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Dynamically Duplicating Cell Formatting with VBA: A Tech Support Solution

This article solves the problem of duplicating cell formatting from a source range to a destination range in Excel using VBA without copying underlying data values.

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Upgrading Your RAM: Installing 4x4GB AIR Vengeance LPX DDR4 modules on ASUS X99-A II Motherboard

Resolve boot failures and signal integrity issues by installing four DDR4 modules in the correct A2, B2, A1, B1 sequence on ASUS X99 motherboards.

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How to Use sys.path.append() with OS Module in Tech Support

Resolve ModuleNotFoundError by dynamically adding custom directories to sys.path using os.path for portable, absolute path construction.

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Troubleshooting MapProxy with Windows Servers in Multiple Environments

Resolve MapProxy actively refused errors on Windows by fixing binding addresses, clearing port conflicts, and configuring firewall rules.

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Troubleshooting Website Access Between Two Offices on Different Subnets

Resolve intermittent IIS website access failures between remote offices by fixing routing, firewall ACLs, and DNS misconfigurations.

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Can't Install OptiFine on Linux PC: A Comprehensive Guide

Resolve OptiFine installation crashes on Linux caused by the java.awt.HeadlessException No X11 DISPLAY variable set error.

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Unclosed batch after opened WhatsApp desktop program in batch file

Resolve batch file hanging after launching WhatsApp Desktop by using the start command with an empty title argument to run the application asynchronously.

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Optimizing Website Speed: Improving Your PageSpeed Insights Score

Resolve high PageSpeed Insights scores by inlining critical CSS, deferring JavaScript, and preventing layout shifts.

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Count Audio Streams in MP4 Files Using FFprobe: A Tech Support Guide

Resolve compatibility issues by counting audio streams in MP4 files using FFprobe and shell utilities for batch processing.

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Making VSCode Preview Collapsible: Toggle Document Lines in Visual Studio Code

Resolve screen clutter by toggling the VSCode peek view preview pane visibility using keyboard shortcuts or settings.

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Why does a laptop have 5v power when it's off?

Explains why laptops retain 5V standby power for features like USB charging and Wake-on-LAN, and details the associated energy consumption and overheating risks.

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Safely Deleting the AppData\Local\Temp Folder: A Comprehensive Guide

Resolve application crashes and free disk space by safely clearing obsolete temporary files from the AppData\Local\Temp folder.

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Online Shopping Application: Troubleshooting and Support

Resolve online shopping app issues by verifying network connectivity, resetting passwords, and fixing payment errors to restore functionality.

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WSL and VM: Unable to Connect WSL2 Ubuntu to VMware VM

Resolve WSL2 Ubuntu connectivity issues with VMware VMs by aligning network modes and disabling Windows Firewall blocks.

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Change Dropdown Value based on Table in Excel VBA for Tech Support

Update Excel Form Control dropdown values dynamically from a structured table using VBA ListFillRange to reflect data changes automatically.

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Understanding Windows Come Hibernation?

Explains how Windows hibernation saves system state to disk for power efficiency and data safety compared to sleep mode.

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How to Manually Close SSH Ports/Bindings on a Mac 15.1 System for Troubleshooting Jump Server Connections

Resolve stuck SSH jump server connections on macOS 15.1 by identifying and terminating lingering background processes using Terminal commands.

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Access Denied Errors: How to Fix and Prevent Them

Resolve access denied errors on Windows, macOS, and Linux by fixing permission mismatches, taking file ownership, and closing locked processes.

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Why Were My Terminations Showing Open on the Same Pair but All the Cables Work?

Resolve false open termination errors on functional cables by aligning tester standards with actual network speeds and wiring configurations.

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How to Stop Chrome 132's Self-Signed Certificate Nagging on Localhost

Resolve Chrome 132 security warnings for localhost by using mkcert to install a locally trusted certificate authority.

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How to Scroll Without Pausing in tmux: Fixing the Ctrl-B Pause Issue

Fix the Ctrl-B pause in tmux by setting prefix-timeout to 100ms in .tmux.conf for seamless scrolling.

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Uninstalling Newest Realtek Audio Drivers Results in Driver Issues on Asus Laptop

Resolve audio and HDMI failures on Asus laptops after uninstalling Realtek drivers by forcing a clean removal via Device Manager and reinstalling through Windows Update.

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Running Games from Another PC on Your PC

Resolve input lag and latency issues when streaming games from a remote PC to a local device over a network.

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Troubleshooting Router as Repeater with Directional Antenna: Intermittent Device Connectivity

Resolve intermittent device connectivity when using a router as a repeater with a directional antenna by optimizing alignment, channel selection, and network configuration.

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Motherboard Flashing Every 5 Seconds: Troubleshooting Hardware Failure

Resolve motherboard flashing every 5 seconds by isolating short circuits and faulty power supply protection triggers.

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Recover Deleted ReFS Partition Files with DMDE

Recover files from deleted ReFS partitions using DMDE to scan raw sectors and reconstruct metadata without overwriting data.

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Ignore blank/0 values in AVERAGEIF with two ranges

Calculate averages across two ranges while excluding blank and zero values using SUMPRODUCT instead of AVERAGEIF.

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IP Change in Router Causing No Internet Connection: Here's How to Fix It

Resolve internet loss after changing router IP by updating DHCP ranges and renewing client leases.

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How to Convert Multiple IMG Files to a VDI

Automates converting multiple IMG files to VirtualBox VDI format using VBoxManage scripts.

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Remotely Granting User-Specific Access and Execution Permissions

Grant users remote access to specific folders and single executables on Linux and Windows while enforcing least privilege.

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How to Log Keypresses in Windows and Ubuntu to Diagnose Communication Error

Diagnose keyboard communication errors by logging keypresses using Windows OSK and PowerShell or Ubuntu xev and evtest.

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Virtual (USB) COM ports on Windows 11 Home (Surface)

Resolves missing physical serial ports on Windows 11 Surface devices by installing correct virtual COM port drivers for USB adapters.

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How does std::forword work in the context of a folding expression

Resolves incorrect value category handling in C++17 folding expressions by using std::forward to preserve lvalue/rstate distinctions for optimal move semantics.

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Cannot Ping Public IP but Can Ping Public DNS of a Public EC2 Instance - Troubleshooting Guide

Resolve inability to ping EC2 public IP by allowing inbound ICMP Echo Request traffic in security groups and network ACLs.

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Small Input-element not visible on phone: HTML CSS Solution

Fix invisible small input elements on mobile by resolving CSS overflow, z-index conflicts, and box model issues.

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Troubleshooting QuickBooks Enterprise Freezing/Crashing: Tried Almost Everything

Resolve QuickBooks Enterprise freezing and crashing by repairing corrupted files, updating Windows, excluding antivirus interference, and fixing Database Server Manager service issues.

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Troubleshooting Ansible Installation Failure: Installing IIS Web-Server on VirtualBox Windows Machine

Resolve Ansible installation failures on VirtualBox Windows guests by fixing WinRM configuration and network adapter settings to enable IIS deployment.

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Setting up an X11 SSH Tunnel for Remote Desktop Access to a VM

Configure an SSH tunnel in PuTTY to securely access a VM's remote desktop via RDP without exposing port 3389.

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How to Get an RSS Feed of a Specific User's Posts to a Specific Instance on Lemmy

Generate a Lemmy user RSS feed by appending .rss to the profile URL to track their posts and comments.

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How to Make USB Flash Drive Immutable/Read Only Forever?

Prevent accidental data modification or malware infection on USB flash drives using hardware write-protection switches.

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Is this battery bulging/swollen?

Identify swollen battery symptoms like trackpad clicking or chassis gaps and execute immediate safety shutdown procedures to prevent fire hazards.

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Windows 11 Disk Only Boots with Windows 10 Disk Present: Troubleshooting Guide

Fixes Windows 11 boot failure caused by corrupted EFI metadata or broken BCD entries that require a Windows 10 disk to start.

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How to Edit the Registry in Windows 10 (Like in Win 7) without Having to Take Ownership of Keys All the Time

Resolves Windows 10 registry access denied errors by launching regedit as administrator instead of manually taking ownership.

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Correcting Horizontal Movement of Mouse Cursor: A Step-by-Step Guide

Fixes unintentional rightward drift of the mouse cursor by addressing hardware dirt, pointer speed settings, and driver conflicts.

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