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Tag Archives: Troubleshoot

How to troubleshoot RAM on Linux

The best way to troubleshoot RAM chips connected to a PC is with a Linux tool known as Memtest86. It scans the connected RAM chips and can determine the health of them. In this guide, we will show you how to use Memtest86 to troubleshoot your RAM. Getting Memtest86 Memtest86 …

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How to run hardware diagnostics from BIOS without an OS

Desktop operating systems offer different ways to troubleshoot problems. Most of these solutions come as third-party apps that you can run on the desktop OS but there are also built-in troubleshooting tools on most of them. The real problem arises when you no longer have an OS to boot to. …

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How to fix the “NO_PUBKEY” GPG error on Ubuntu

The “NO_PUBKEY” GPG error occurs when a user adds a software repository or PPA to Ubuntu without adding the GPG signing key. Since Ubuntu’s software back-end takes security seriously, the system will not allow the user to install anything from the repository without this key, and so this error appears. …

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How to fix printer offline on Windows 10

Printers are some of the most problematic hardware you’ll find. We may be living in a world where 3D printing is possible, but it doesn’t mean printing on paper at home has improved all that much. Printers are pretty much still from hell and ink and toner cost an arm …

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Caution: KB4515384 is breaking audio on Windows 10

Microsoft released KB4515384 on September 10, 2019 and this update is problematic. It appears to be breaking audio for many users and Reddit already has several threads asking for help. If this update is queued to download or install on your system, it might be a good idea to hold …

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How to fix 404 errors with Ubuntu PPAs

PPAs are one of the best features on Ubuntu Linux. With a PPA, users can quickly install their favorite software, almost instantly, without needing to worry about if Ubuntu Linux carries it in their software sources. Still, for as useful as the PPA feature is, it has one big problem: …

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How to fix a frozen Mate Linux desktop

The Mate desktop is based on Gnome 2.X, which has been around for more than ten years. Since it’s based on such old technology, it’s very reliable and rarely runs into issues. However, “almost” isn’t a 100% success rate, and unfortunately, sometimes issues can come up and stop your workflow. …

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How to fix Quick Look stuck at loading on macOS

Quick look is feature on macOS that allows you to quickly preview a file. It supports quite a few different file formats and it’s so popular, there are apps that replicate it on Windows 10. The feature is great because it’s quick but if Quick Look tends to get stuck, …

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