Acer Aspire 4530 Laptop does not shut down, but just restart

The vendor McAfee anti-virus stopped to work 2 days ago. Every time I try to open it just show a white big window but without nothing of its features as before. Just saying that this is my first suspicion of the main problem. Now the laptop never again can shutdown but only re-start.

Here was the error message:
Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 1033

Additional information about the problem:
BCCode: 9f
BCP1: 00000003
BCP2: 87414030
BCP3: 82F43AE0
BCP4: A341B910
OS Version: 6_1_7601
Service Pack: 1_0
Product: 768_1


what can I do?

If this is not the proper forum for this, please tell me where.

Thanks

Raquitico

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