100% CPU utilization all the time - Cisco SF 300-48 48-port 10/100 Managed Switch with Gigabit Uplinks (SRW248G4K9NA)

try to delete large file or free space your disk , you can see your CPU proccess in task manager if your cpu work 100 % ,that makes your laptop become slow , try to disable program on start up windows->run->msconfig disable program and then try to maintain your laptop performance with utilities like advance system care or tune up utilities , defrag your harddisk , if your laptop still slow , try to reinstall your OS if this happen , then your hardware have trouble

In Task Manager, go to the Processes tab and sort by the CPU column. See what is hogging up all your CPU. It may be a virus, if so, I recommend downloading Malware Bytes and doing a full scan. Warning, it could take several hours to scan depending on the size of your machine. Good luck!

Try Chrome browser, but Windows based systems tend to slow down with time. Specially with older and slower systems like mine. Try disabling startup processes. In Windows Start > Run (search in Win 7) type msconfig. Go to Startup and disable anything that you don't require to start. They will kick off only when you run the programs instead of utilizing resources like memory and CPU for the get go.

There are many things that might cause your PC to run slowly or restart at time and then. It could be a fragmented disk; fragmented registry; a virus, Trojan, or spy ware; high CPU and/or utilization due to too many programs running; high disk I/O; or something else.

To check your CPU and memory utilization, run Task Manager. You can start Task Manager by pressing CTRL+ALT+DEL and then clicking on the Task Manager Button. In Task manager, click on the Performance tab and check CPU Usage and PF Usage. PF Usage is an indicator of memory usage. If one or both of these is high, click on the Processes tab, and sort the columns by CPU or Memory to see what processes are consuming the resource. If you are not sure what the process "Image name" is for, Google the name and you should find what the process is for.

If your CPU and memory usage are reasonable, then you may have a different issue. Even if you running anti-virus software, it may be beneficial to scan your PC with another scanner to check for viruses. No anti-virus software is 100% perfect at catching everything. Here are a few good free online virus scanners that you can run to check your PC:

http://security.symantec.com/sscv6/home.asp?langid=ie&venid=sym&plfid= 23&pkj=RRJEDTKJBTVISBYWWYP

Start by identifying the processes which are using the cpu and stop them or disable the processes which are causing the usage.

Be careful how you interpret this information. In general, any program that has "work" to do will use the CPU when it is available. Showing 100% CPU usage over en extended period of time MAY indicate a problem or it may just reflect the case where there are background programs beiung run that have no effect on the system. The "scheduling" iof the CPU is usually done in chunks called quanta. Since CPU time is usually scheduled on what is called a pre-emptive mode, lower priority jobs (like virus scanning of the disc) will be pre-empted by an interactive user command (word processing for example).

Without examining your system and understanding what programs are running, it is hard to provide guidance on how to "fix": the system. Use the task manager to see what percentage of time is being used and for what. The utilization is shown as a percentage of the whole. Report the info here and we should be able to at least explain what is happening.

Please continue this in the other duplicate thread.

Thanks,
Dan

Be careful how you interpret this information. In general, any program that has "work" to do will use the CPU when it is available. Showing 100% CPU usage over en extended period of time MAY indicate a problem or it may just reflect the case where there are background programs beiung run that have no effect on the system. The "scheduling" iof the CPU is usually done in chunks called quanta. Since CPU time is usually scheduled on what is called a pre-emptive mode, lower priority jobs (like virus scanning of the disc) will be pre-empted by an interactive user command (word processing for example).

Without examining your system and understanding what programs are running, it is hard to provide guidance on how to "fix": the system. Use the task manager to see what percentage of time is being used and for what. The utilization is shown as a percentage of the whole. Report the info here and we should be able to at least explain what is happening.

Dan

Download a small utility called CPUID from http://www.cpuid.com or use this direct download link "http://www.cpuid.com/download/hwmonitorpro/HWMonitorPro_106.zip". Using this utility you can analyze your system hardware statistics and also you can find the RAM capacity supported in your system along with various other RAM parameters. It will also show you the available free RAM slots to use, as well. I hope this is useful to you.

The reason is your machine is too slow for VISTA. Your machine need better vidio hardware and more ram.

Vista is more graphic intensive.