Windows 8.1 64bit Lagging issues

Hi,
I've installed Windows 8.1 Enterprise.My Laptop model is Compaq Presario CQ50-130US. Windows 8.1 was running fine for few days. Then suddenly, started to Lag or stop for 10-20sec. Nothing happens during this time. Also, sometimes, I'm unable to "Lock/Shut
down/Restart".
I don't know what the problem is. Please help me fix this issue.
Thanks,
Anil

Hi Kumaranil_1918,
If my understanding is right, the computer hangs randomly and we can’t Lock/Shut down/ Restart sometimes.
Do you receive any error code? And have you check the event viewer?
Please take the following steps for troubleshooting:
1. Update the drivers and Windows updates
2. Use the task manager to check which program occupy the large amount of the system resource as my last reply.
For more information, please refer to the following KB.
http://support2.microsoft.com/kb/2681286
Best regards,
Fangzhou CHEN
Fangzhou CHEN
TechNet Community Support

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    Attachments:
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