Check these pc problem and tell me how to resolve it?

these are some errors which i experience in window xp pro sp2.please tell me briefly how to resolve it.



1- after double tapping the drive it is not opening.

2-when right click to open graphic properties to change my monitor refresh rate it say run time error, floating point not loaded.

3-launching application.exe has encountered a problem and needs to close.we are sorry for the inconvenience.

4-svhost.exe has encountered a problem and needs to close.we are sorry for the inconvenience.

5-flashguard.exe application error.the instruction at ';0x7c9c911d'; refrenced memory at ';0x00000000';.the memory could not be read.click ok to terminate the programe,click cancel to debug the program.

6-window explorer has encounter a problem and needs to close.we are sorry for the inconvenience.

7-problem ejecting usb mass storage device.the generic volume cannot be stopped right now.try stopping the device again.

8-error deleting files and folder.it is used by another person or program.close any program that might be using the file and try again.

9-you chose to end the nonresponsive program ,the program is not responding.Check these pc problem and tell me how to resolve it?
Preparation Guide For Use Before Using HijackThis and other Malware Removal Tools, Instructions for receiving help in cleaning your computer



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