What to do if Windows hangs up in Windows XP?

What to do if Windows hangs up in Windows Vista? What to do if Windows hangs up in Windows Vista?
Please confirm the items below if Windows hangs up.

■	Please check whether software other than pre-installed software is installed.

■	Please check whether other hardware has been added (including Memory).

■	Please check whether the peripherals are connected to the PC.

■	Please disable network connections (Only when the computer is connected to the net).

■	Please check whether CPU Usage is normal.

■	Please check whether the computer is infected with viruses.

■	Please check whether software other than pre-installed software is installed.
	Please check whether software other than pre-installed software is installed. If VAIO hangs up frequently after other software is installed, please uninstall it, and then confirm whether the computer runs properly. In addition, please ensure the compatibility of the installed software with the OS.

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■	Please check whether other hardware has been added (including Memory).
	If other hardware has been added, please remove it, and then confirm whether the computer runs properly. The computer may not run properly if ill-suited hardware has been added.

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■	Please check whether the peripherals are connected to the PC.
	If peripherals have been connected to the PC, please disconnect them, and then confirm whether the computer runs properly. The computer may not run properly if ill-suited peripherals have been added.

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■	Please disable network connections (Only when the computer is connected to the net).
	The computer hangs up after connecting to the network. Please disconnect the net to check whether the computer runs properly. Please contact network administrator for details.

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Please check whether CPU Usage is normal.

Check if there is a program that occupies high amounts of CPU usage. Here is the detailed step. Note If close some program, unsaved data will be lost. Press Ctrl + Alt + Delete simultaneously. Click Task Manger. Windows Task Manager appears. Click tab Processes to make sure whether the program which occupies most usage of CPU is running. Reference Information Please click Show processes from all users to display processes from all users. If User Account Control does not display, please refer to the solution below. The process which occupies most usage of CPU will lead to some problems. Click End Process to close it, and then confirm whether the problem disappears. Note If close some programs, the computer may not run properly.

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■	Please check whether the computer is infected with viruses.
	Please use antivirus software if VAIO may be infected with viruses. Please refer to the related solutions below. >>Related information Regarding the information of User Account Control in Windows Vista. What to do if PC is infected with viruses?