Computer Error With Blue Screen

Any other messages while starting the PC? Only a blue scree…any changes in the registry?

Thanks for the reply. Yes I did forget to say at start up I get a message that says "system battery voltage is low". I rarely turn off my computer and just for got to mention this.

Is this a laptop or desktop?

Most Stop Errors occur due to recent software or hardware changes, where the installation was not completed correctly or the hardware or software creates a conflict due to incompatibility.

This particular Error Code: STOP: 0X00000050 can refer to a couple of things due to a bad driver, or faulty or incompatible hardware or software. Technically, this error condition means that a kernel-mode process or driver tried to access a memory location to which it did not have permission, or at a kernel Interrupt ReQuest Level (IRQL) that was too high. (A kernel-mode process can access only other processes that have an IRQL lower than, or equal to, its own.)

So what could it be?

Possibly the RAM sticks were not completely "seated" when you installed them?
You probably made sure it was the correct type of physical RAM?
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Possibly the new RAM has changed the machines configuration, such that other "memory intensive" components may need to have their drivers removed and reinstalled…….. think Video Adapter Driver.

Possibly a software that uses a great deal of memory needs to be reinstalled….. Think AntiVirus Applications.
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The STOP: 0X00000050 Error can also refer to Malware Infection, read here:
http://support.microsoft.com/kb/894278
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-I'd walk through the physical installation of the RAM sticks first, to be sure that they are all fully and firmly installed.

-Then I'd consider removing the new RAM and running on the old. If the Error does not re-occur with the old RAM, then you may have purchased the wrong type of RAM or one/more of the new RAM sticks are faulty from manufacturer. Rare, but it happens.

Have you ever used MemTest86 for the testing of RAM? I'd use MemTest86 if I found that the old RAM worked without error message, and the new RAM provoked the Error again.

-Then I'd check Device Manager for any yellow or red warnings listed next to Drivers, (particularly Video Adapter)
I'd even remove and reinstall the Video Adapter Driver just to make sure.

- Then I'd consider the possibility of the malware (root-kit type) as mentioned in the MS Link above.

Keep us posted with your progress and additional questions.

Best Regards

Thanks for the reply. I had the memory sticks installed. I did not do it my self. I thought this was over my head. I would think that when the sticks were installed they ran a test like you said you would. I do not know why I am thinking it could be Malware installed in hiden file. I will look into this and I will call the people who installed the memory sticks. Before I go I left the computer on last night and I shut down then rebooted up. Something is going on. Thanks for the help I keep you posted.