Your computer running Windows 7 is doing some very strange things with the operating system. You are fairly certain it is not a hardware issue.

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Your computer running Windows 7 is doing some very strange things with the operating system. You are fairly certain it is not a hardware issue. You need to try to get further insight into what is going on within the operating system. Which tool would be best-suited for this?

Task Scheduler

Disk Management

Event Viewer

Performance Monitor