Product design question
Improve the battery life of all Windows computers.
- Microsoft
- Product design
- Hard
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What this question tests
Systems level product thinking on a hardware-software problem spanning many device makers, not a single feature tweak.
How to approach it
- Clarify scope: is this Microsoft's Windows software stack, OEM hardware, or both, since Microsoft controls only part of the equation.
- Identify user segments: laptop users on battery-critical days, like travelers, versus desktop users who rarely care.
- Name pain points: background app activity, inefficient scheduling of updates and indexing, and inconsistent driver quality across OEMs.
- Propose solutions: smarter background process throttling, an OS level battery health dashboard showing what is draining power, and stricter OEM driver certification for power efficiency.
- Prioritize software level fixes first since Microsoft has direct control, and treat OEM hardware improvements as a longer term lever.
- Define success as average battery life hours reported via telemetry across the fleet of Windows laptops.
What a strong answer includes
- Separates what Microsoft controls directly (OS scheduling, background app policy) from what needs OEM cooperation (chipset drivers).
- Proposes a concrete, low risk win: a battery usage breakdown UI, similar to what mobile OSes already ship, to nudge users and developers.
- Names a guardrail: efficiency gains should not degrade perceived performance, since users will disable power saving features that feel slow.
Common mistakes
- Proposing hardware changes as if Microsoft can unilaterally ship them across all OEMs.
- Ignoring the tradeoff between performance and power savings.
Likely follow-up questions
- How would you get OEM partners to adopt stricter power efficiency standards?
- How would you measure the real world impact versus lab battery tests?
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More questions from Microsoft
Learn the skill behind it
Chapters of the AI PM course that teach what this question tests.
- Chapter 4: Discovery and strategy for AI products
- Chapter 7: AI UX and human oversight: design for a system that is wrong sometimes
- Chapter 14: Get the job: the AI PM interview loop