Testing RAM for faults calls for a tool that specifically exercises memory and reports any errors found. Windows Memory Diagnostic is the built-in utility designed for this purpose. It runs a series of memory tests, usually after a restart, and then shows the results (often logged in the Event Viewer) indicating whether the RAM is healthy or has detected errors. This helps pinpoint faulty memory modules or timing issues, guiding you toward hardware replacement or configuration adjustments. The other utilities test something else entirely: Disk Defragmenter reorganizes data on storage drives to improve performance, SFC (System File Checker) verifies and repairs corrupted Windows system files, and DISM (Deployment Image Servicing and Management) repairs Windows images and components. They don’t perform RAM stress-testing or fault detection.

Starting fresh with a clean install means wiping the drive and installing a new OS image, which eliminates clutter, bloatware, and lingering software issues. Rebuilding a PC to address performance problems and start from a clean slate fits this approach best because you’re not carrying over old configurations, junkware, or corrupted system files. You get a truly fresh baseline and can reinstall only the applications you actually need, which is what a clean install aims to achieve. In contrast, an in-place upgrade keeps most of your existing apps, data, and settings and simply moves to a newer OS version, which won’t reliably remove bloatware or deeply rooted issues. Installing a temporary OS is for testing or experimentation rather than a persistent refresh of the current machine, and cloning the existing installation copies everything as it is to new hardware, preserving the current state rather than starting anew.

Safe Mode is a diagnostic startup that runs Windows with only the essential drivers and services. This lean environment helps you pinpoint problems caused by software, drivers, or settings that don’t load in normal mode. To boot into Safe Mode in Windows 10/11, you can use the built‑in recovery options: hold Shift while you click Restart to access the advanced startup menu, then choose Troubleshoot, Advanced options, Startup Settings, and Restart. After the restart you’ll be given options to start in Safe Mode (and see Safe Mode with Networking as an option if you need network access). This path matches the idea of starting with a minimal set of components and then enabling Safe Mode as a troubleshooting environment. The other statements are less accurate: Safe Mode isn’t an absolute disablement of all startup programs or network access in every scenario, because there are Safe Mode variants (like Safe Mode with Networking) that include network support. And Safe Mode isn’t limited to antivirus scans; it’s a general-purpose troubleshooting environment used for a wide range of issues.

An SLA in IT support sets the service levels you’re obligated to meet—specifically, the target times for responding to and resolving tickets. It creates clear expectations with users and guides how work is prioritized and tracked. Prioritizing tickets hinges on two ideas: impact and urgency. Impact is about how widespread the problem is and how many people or business functions it affects. Urgency is about how time-sensitive the issue is and how quickly it needs resolution to prevent harm or downtime. By combining these two factors, you assign a priority level (often described as P1, P2, etc.) so the most serious issues are addressed first and within the SLA’s target times. If you’re at risk of missing a target, you escalate to the right on-call staff or management to ensure timely action. For example, a complete outage of email affecting many departments is high impact and high urgency, so it gets top priority. A password reset for a single user is low impact and low urgency, so it’s handled after more critical issues. The other options don’t fit because SLAs aren’t just for vendor contracts and they do influence how tickets are handled; prioritization isn’t always first-come, first-served and should consider impact and urgency; and SLAs aren’t about hardware procurement timelines.