Out Of Memory when plenty available

Question

My computer often runs out of memory, even when there is a lot of memory free as shown by the Task Manager:

(Purely for reference, the labels in English:

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I have no clue how to find out what is the problem.

Additional informationThe virtual memory setting

Answer 1

Increasing the initial and max pagefile make the problem happen less. I recently removed a background clipboard application named "CLCL", The problem has gone. Thank you.