A+ Lesson

Degraded Performance and Low Memory Warnings for A+

Last updated: 6/10/2026

Short answer

Performance degradation often results from high CPU usage, disk thrashing, or insufficient RAM causing frequent paging. Begin with Task Manager to identify processes consuming memory or CPU, check startup programs, and inspect disk health if paging causes high disk activity. Remediation steps include closing unneeded apps, disabling unnecessary startup programs, scanning for background tasks, and advising RAM upgrades for persistent memory pressure.

Why it appears on the exam

- Given Task Manager output, identify which process most likely causes low memory warnings. - slow performance with 100% disk usage - which immediate Windows tool should you use? (Resource Monitor / Task Manager.) - Best-choice: initial steps to relieve low memory before hardware changes.

Key concepts

Concept 1

Required terms

low memory warning: A Windows notification that available physical memory is critically low and the system is using excessive paging. low memory warning: Windows message indicating critical RAM shortage and heavy paging. Recognition cue: popups or high pagefile usage in performance tools.

Example

Desktop with many browser tabs shows frequent disk activity and slow responsiveness -> check memory use per tab/process, close tabs or recommend RAM increase.

Concept 2

How Degraded Performance and Low Memory Warnings works

Performance degradation often results from high CPU usage, disk thrashing, or insufficient RAM causing frequent paging. Begin with Task Manager to identify processes consuming memory or CPU, check startup programs, and inspect disk health if paging causes high disk activity. Remediation steps include closing unneeded apps, disabling unnecessary startup programs, scanning for background tasks, and advising RAM upgrades for persistent memory pressure.

Example

System shows 95% memory usage after login -> identify and remove runaway process using Task Manager, consider malware scan if unexplained.

Concept 3

Common confusion

Students sometimes suggest always increasing RAM as first fix. While RAM helps, basic steps like closing memory-hungry apps, addressing runaway processes, and checking for malware or background updates should come first.

Example

Low memory warnings appear after remote desktop sessions -> check profile/virtual memory settings and adjust as necessary.

Concept 4

Core 2 (220-1202) question cues

Given Task Manager output, identify which process most likely causes low memory warnings; slow performance with 100% disk usage; which immediate Windows tool should you use? (Resource Monitor / Task Manager.); Best-choice: initial steps to relieve low memory before hardware changes.

Example

Desktop with many browser tabs shows frequent disk activity and slow responsiveness -> check memory use per tab/process, close tabs or recommend RAM increase.

Sample questions

Select an answer to reveal the explanation. For tracked practice and weak-area review, use the Cultiv8 app.

Q1.In an A+ question, this detail appears: Desktop with many browser tabs shows frequent disk activity and slow responsiveness -> check memory use per tab/process, close tabs or recommend RAM increase. Which option matches it?

Q2.A technician sees this situation: System shows 95% memory usage after login -> identify and remove runaway process using Task Manager, consider malware scan if unexplained. Which answer should they choose?

Q3.A support scenario about Degraded Performance and Low Memory Warnings feels similar to a nearby topic. What is the safest way to choose an answer?

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