It seems that you are encountering an issue with your Microsoft registration, which is currently not permitted for your user account. This type of error is often related to account restrictions or issues that need to be resolved directly with Microsoft or the exam provider.
Since Pearson VUE has directed you to raise this question, I recommend reaching out to Microsoft support for assistance with your account status. They will be able to provide specific guidance and help resolve any issues that may be preventing you from scheduling your exam.
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