PCWorld highlights how old USB drives can be transformed into powerful PC rescue kits using portable applications that run without installation. Essential tools include bootable OS creators like Rufus and Ventoy, antivirus scanners like ClamWin and Stinger, and system repair utilities. These portable rescue kits enable tech support across multiple computers, offering hardware monitoring, network diagnostics, and Windows optimization capabilities. Portable apps are applications and tools that can be started directly upon clicking them, with no prior installation needed. The advantage of this is that the programs are immediately ready for use and can be started from any storage drive -- including a USB flash drive. These useful tools are then available for analyzing and maintaining any computer you slap the flash drive into, making them utterly invaluable for informal tech support duties. Let's take a look at the best portable applications for hardware analysis and system tuning, as well as a basic setup with media player, image editing, and word processing tools.

France is already moving on from Zoom and Microsoft Teams in favor of homegrown alternatives. Other countries are quickly following suit. As tensions between President Donald Trump and Europe continue to simmer, the continent is accelerating its moves to reduce its addiction to US technology . Cities and governments are ditching Microsoft Office for open-source alternatives, shifting to European cloud hosting for local AI, and moving defense data to systems without American involvement . Nowhere has this been more clear than in France.

There's a deep, forbidding moat that surrounds Nvidia--and it has nothing to do with hardware. Forgive me for starting with a cliché, a piece of finance jargon that has recently slipped into the tech lexicon, but I'm afraid I must talk about "moats." Popularized decades ago by Warren Buffett to refer to a company's competitive advantage, the word found its way into Silicon Valley pitch decks when a memo purportedly leaked from Google, titled "We Have No Moat, and Neither Does OpenAI," fretted that open-source AI would pillage Big Tech's castle. A few years on, the castle walls remain safe. Apart from a brief bout of panic when DeepSeek first appeared, open-source AI models have not vastly outperformed proprietary models.

PCWorld reports that Windows 11 still relies on code from the 1990s, particularly the Win32 API from Windows 95, for basic functions like right-clicking. Microsoft CTO Mark Russinovich acknowledges the unexpected longevity of this legacy code, which remains fundamental to many applications and core Windows operations. Previous attempts to modernize the Windows API, including WinRT, failed to fully replace the enduring Win32 system that continues powering today's operating system. Windows 11 is the most modern, secure, and updated Windows ever--at least that's what Microsoft keeps saying. But a senior Microsoft executive recently revealed just how much of the underlying technology in Windows 11 is still legacy, all the way from decades ago. One such relic in Windows 11 comes into play whenever you right-click a file or launch a desktop app. When you perform such tasks, you're executing code that was written in the 1990s. We're talking about the Win32 API, for which Microsoft still maintains a programming reference support document . Although the Win32 API became widespread with Windows 95, it had already been implemented in Windows NT prior to that.

NHS England is pulling its open-source software from the internet because of fears around computer-hacking AI models like Mythos. A decision by NHS England to withdraw open-source code created with UK taxpayer funds because of the risk posed by computer-hacking AI models is attracting growing backlash. Last month, Mythos, an AI created by technology firm Anthropic, was widely reported to be capable of discovering flaws in virtually any software, potentially allowing hackers to break into systems running it. NHS England has now told staff that existing and future software must be pulled from public view and kept behind closed doors by 11 May because of this risk. The decision goes against the NHS service standard, which requires that staff make any software they produce open-source so that tools can be built upon, improved and used without the need for duplicated effort.

The exploit, dubbed CopyFail and tracked as CVE-2026-31431, allows hackers to take over PCs and data center servers. The Linux vulnerabilities have been patched--but many machines remain at risk. Publicly released exploit code for an effectively unpatched vulnerability that gives root access to virtually all releases of Linux is setting off alarm bells as defenders scramble to ward off severe compromises inside data centers and on personal devices. The vulnerability and exploit code that exploits it were released Wednesday evening by researchers from security firm Theori, five weeks after privately disclosing it to the Linux kernel security team. The critical flaw, tracked as CVE-2026-31431 and the name CopyFail, is a local privilege escalation, a vulnerability class that allows unprivileged users to elevate themselves to administrators.

Deep neural network (DNN) inference based on secure 2-party computation (2PC) can offer cryptographically-secure privacy protection but suffers from orders of magnitude latency overhead due to enormous communication. Previous works heavily rely on a proxy metric of ReLU counts to approximate the communication overhead and focus on reducing the ReLUs to improve the communication efficiency. However, we observe these works achieve limited communication reduction for state-of-the-art (SOTA) 2PC protocols due to the ignorance of other linear and non-linear operations, which now contribute to the majority of communication.