Why is my PC suddenly become very slow?
441055
Chances are that something is running, probably AVG, while you're trying to do stuff. If AVG is scanning your computer, your computer can slow down as AVG uses up all of your processing time. Whenever your computer is moving slow, hit Ctrl+Alt+Del and click the Performance tab. Check the PF Usage and CPU Usage. You can then click the Processes tab and sort the columns by CPU and Memory usage. Doing so will let you know which processes are using up your CPU time and/or Memory. You can right click a process and terminate it by clicking End Process. However, be sure that you know what these processes are before you go terminating them.
556020
I would say that you most likely have a bad CPU.  You've eliminated all other potental reasons except for the power supply.\n\nDo a quick check of the power supply, but I'd almost put money on a shot CPU.
1017680
Try doing a defrag on it.  Assuming you are using Windows XP,\n\nStart > All Programs > Accessories > System tools > Disk Defragmenter\n\nYou might also want to try uninstalling any programs or utilities that you don't need or use.  Also, try doing a disk cleanup.\n\nStart > All Programs > Accessories > System tools > Disk Cleanup
1080777
There are several things to check out regarding your problem.\n\n1. Perhaps your computer infected by a virus, worm, spyware or trojan. Check with your antivirus software and make sure the virus definition is updated regularly. Virus or similar things can slow down your PC performance.\n\n2. Perhaps there is corrupt data on your application. Please make sure to run the defragmentation tool regularly (once a month). This can be useful to monitor your hardisk performance.\n\nThanks.\n\nSony AK\nwww.sony-ak.com\nY!: sonyarianto
1007969
I suppose you are running anti-virus & at the same time working on your pc. If the RAM config is less, then its normal for your pc to freeze or slow while the anti-virus is running. Try increasing the ram to atleast 256 or 514 MB. Sure this will help you. But before buying one check out if your motherboard support any extra ram & also what type of ram can be installed S or DDR. \nIf you dont want to replace ram, simply remove unneccessary softwares (which you dont use much) & also delete unwanted data. Further, dont open multiple applications together.
320964
Your computer is probably getting slow because of spy-ware or a virus,or maybe you need to update your computer
860512
have you deleted files , scaned your disk , did a disk clean up, defragged lately.. those things can slow the comp down, if not done weekly.. maybe you need more ram.. did you update before you ran your virus scan.. sometimes all you need 2 do is reboot.. bummer eh
381637
A major reason why a lot of machines start slowing down after a while is because of noncontiguous files on your hard drive.  this can easily be fixed by running your disk defragmenter.\n\nTo run Disk Defragmenter on WinXP:\n>Start\n>All Programs\n>Accessories\n>System Tools\n>Disk Defragmenter\n\nMake sure your C: Drive is selected, and then Click analyze to find out how many noncontiguous files are your machine.  If will then tell you if you need to defragement, if so, click Defragment.  It shouldn't take more than an hour to defrag.  Restart, and your computer should be running faster at the startup.\n\nIf there's no difference in the performance, from System Tools, click Disk Cleanup.  If that doesn't work, you might need to run System Restore or reinstall your OS from scratch.  Good luck!
495055
if your sysatem is really slow starting up you may have to many programs starting up when windows starts up\n\ndo this\n\nclick start > then run> type msconfig\n\nclick on the right hand tab for hardware\n\nclick on the disable all\n\nthen click ok and apply and restart\n\nsee if this helps\n\nif you system is still slow you may have been infected with spyware, adware etc\n\ntry downloading a spyware sweeper\n\nwww.download.com\n\ntry spybot search and destroy - its good and free
334826
to many programs running ? not enuff ram ? to many pages open ?? try defrag and disk clean up.
818881
probably you have too much startup programs so when they all work during the startup of windows they cause your computer to slow doewn  a little bit until they are fully activated, then your computer will work properly again.
1064543
usually, PC slowdown can be attributed to unwanted programs running in the background. by typing in 'msconfig' in start>run\nyou can select which programs to turn off...\n\nas a useful guide of which things you need or don't need, try answers that work...\n\nhttp://www.answersthatwork.com/Tasklist_pages/tasklist.htm\n\nthis gives a list of processes and what they do, so you can tell if you can get rid of them...
1105131
You may need to clean it up; try:\nDeleting temp and history.\nRunning clean disk\nRunning Defrag\nClearing your recent files\nEditting the programs that run at start up.
404585
Go into msconfig and turn off programs that you don't need to start when Windows does.\n\nAlso scan for viruses and spyware.\n\nClean out temporary files, use disk cleanup and defrag
657046
Do a regular disk defragment (this is like doing filing within your comp - puts files back in place) from "all programmes>system tools>defragment".  Install a programme like cccleaner (a free download), this cleans everything from temp files, memory dumps, MRU lists and a tonne of stuff.  AVG FREE antivirus is great.  Make sure your Firewall is turned on through your Security centre in the control panel...if you run all these programmmes on a regular basis it should keep things running smoothly, alternatively upgrade your memory as the fuller it becomes the slower things will get.  Hope this helps :)
1174313
could easily be ur PC. clean it out. if you have like 1 gig of space or less on your hard drive i noticed the computer will go into like... order or priority mode where it takes forever to do anything unless its directly related to your operating system. reformat! or clean up ur pc =/
650356
If your machine ran faster a while ago (like just after your got it), it's importatn to look back on your use of it. If it began to slow down after you added that program (<whatever> it was), or after you changed a graphics card or some such, ... that may give a clue. You don't suggest such a thing, but it's worth trying to think about. \n\nIn general, if your machine is a Windows machine, it is particularly subject to infestation by malware. These are viruses, Trojans, spyware, and so on, which have been silently installed on your machine. Use a good antivirus program (recently updated) to detect and remove them from the entire machine. And use at least two spyware programs (also recently updated) to identify and remove spyware programs. (Two, because not all spyware programs, even the good ones, catch them all.) Examples of well respected programs for Windows (all available in limited freely downloadable versions, include: AVG antivirus, Avast antivirus, Spy Bot, Spy Catcher, AdAware, ...). But you say you've done that. \n\nAll of this, even if successful, may leave the Windows Registry in a messy and clogged state. There are some 'Registry cleaners' available, but if this is the cause, you may be better off by making a backup copy of all your data files, then reformatting the hard disk, and finally reinstalling Windows. This will result in a clean Registry. Using a Registry cleaner is not likely to do as well, though it may be enough.\n\nIn all, remember that, for Windows systems, the rule of thumb is reboot, reinstall, then reformat.  \n\n=========\napplication slow down\n\nIf one particular aspect of your machine (eg, Internet use, heavily computational tasks, heavily disk loaded tasks, ...) is the slowdown winner, this may give a clue. sow applications suing a specific hardware driver may indicate a defective or damaged drive. Removal and reinstallation may clear the problem. Indeed, a cold restart may be enough, since it will clear memory and then rebuild the system (including the drivers) from copies on the hard disk. slow doewn after a system which has had more and more simultaneous processes added to it (virus scanning, spyware scanning, firewall operation, ...) may be due to insufficient system RAM (add more), or too small virtual memory assignment (under Windows), or to conflict between DLL packages. Some applications include DLLs which replace existing ones, with bad effects on existing applications. Reinstallation of the existing applicationa will replace the  then existing, possibly making the new application exhibit problems.   \n\nFinally, it may be that your hard disk has become too fragmented for reasonable response and is spending much of its time thrashing instead of actually reading / writing to the disk. Defragmenting the hard disk may help. Recent bundled Windows defragmenting programs work adequately, but some of the commercial programs are quicker and more flexible.\n\n===========\nrecords\n\nKeep good notes about what you do. Something like, suspect overly fragmented hard disk. Applicaiton foo takes 4 minutes to complete. Defragmented hard disk on 0x/0y/0z at a:bc. Application foo takes 2 minutes. Good improvement, but not enough since application bar still is very very slow. \n\nThe purpose of this is to be able to pass on to someone else if necessary, what you've tried and what results there were, if any. And to keep straight in your own mind what you've done. Experience speaks when I say that it will help, even when you can't see now quite how.