Windows Process-Based Disk Space Analyzer to Find Storage Hogs

Niche Market Opportunity: The Reddit post highlights a common frustration among Windows users: the inability to pinpoint specific background processes that continuously consume C: drive space over time. Existing tools like WizTree are great for analyzing static disk space usage (i.e., what files are large right now) but fall short when it comes to identifying the dynamic, ongoing write activity by individual processes that leads to this accumulation. This opens up a niche for a solution that can track and attribute disk writes to specific processes, both historically and in real-time.

Product Form: A SaaS (Software as a Service) desktop application, initially for Windows, designed to address this gap. Key features would include:

1. Real-time Process Disk Write Monitoring: Track I/O write operations for all running processes, quantifying data written to disk per process.
2. Historical Logging & Analysis: Maintain a log of disk write activity by process over configurable periods (e.g., last hour, 24 hours, week), allowing users to see trends and identify culprits even if the activity is intermittent.
3. Culprit Identification & Reporting: Clearly present which processes are the heaviest disk writers, what files/folders they are writing to (if feasible without excessive overhead), and when this activity occurs.
4. User-Friendly Dashboard: An intuitive interface that simplifies complex data, unlike more advanced tools like Process Monitor, which have a steep learning curve for this specific use case.
5. Alerts & Notifications: Optional alerts for processes exceeding certain write thresholds.
6. Actionable Insights & Suggestions: Potentially offer suggestions based on identified patterns, such as "Adobe Photoshop cache has written X GB in the last 24 hours. Consider reconfiguring cache location or size." This directly addresses the user's comment about Adobe cache.

This tool would differentiate itself by focusing on the dynamic cause of disk space depletion (the "who" and "how") rather than just the static effect (large files).

Expected Revenue: The revenue model could be a freemium approach, a one-time purchase, or a subscription.

• Freemium Model: Basic monitoring for free, with advanced historical analysis, detailed reporting, and automated suggestions locked behind a premium version.
• One-Time Purchase: Priced between $19 - $49 for a lifetime license for a specific version, with paid major upgrades.
• Subscription Model: A recurring fee (e.g., $3-$7/month or $29-$59/year) for continuous updates, cloud-based logging (optional), and premium support.

Revenue Projection (Illustrative):

• Target Audience: Home users experiencing disk space issues, IT support technicians, power users. This is a widespread problem.
• Conservative Estimate: If the tool effectively solves this pain point and is well-marketed:
  • Achieving 1,000 paying users/subscribers at an average revenue per user (ARPU) of $30/year could generate $30,000 ARR.
  • Scaling to 5,000 paying users could generate $150,000 ARR.
  • Scaling to 10,000 paying users could generate $300,000 ARR.
• The potential is significant due to the large Windows user base and the commonality of the problem. Success would depend on the tool's usability, unique value proposition compared to existing free (but often complex or insufficient) utilities, and marketing efforts.