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14 Nov 2008 - 10:58:03
My computer is running slow what steps can I do to fix it?

My computer is running slow what steps can I do to fix it?



Issue:

My computer is running slow what steps can I do to fix it?

Cause:

This issue can be caused by any of the below possibilities.

  1. Hard disk drive is short on available disk space.

  2. Several software programs have been installed/uninstalled leaving behind bad files and/or confusing the software.

  3. Data Corruption.

  4. Computer is overheating.

  5. Bad Hardware.


Additional information:

If your Internet is slow this document does not contain information about this issue. See document CH000986 for additional information about why your Internet connection may be slow.PC Solution:Below are steps for Microsoft Windows that should help speed up the computer or determine why the computer is running slow. Not enough hard disk drive spaceIf you have a hard disk drive that is 2GB or smaller, ensure that there is at least 200MB of hard disk drive space free. If you have a hard drive larger than this size, verify that there is at least 500MB of free hard disk space. This available space allows the computer to have room for the swap file to increase in size as well as room for temporary files. See document CH000528 for additional information about regaining lost hard disk drive space.Hard drive corrupted or fragmentedRun Scandisk or something equivalent to help ensure that there is nothing physically wrong with the computer hard disk drive.Run Defrag to help ensure that data is arranged in the best possible order.Background programsRemove or disable any TSRs or programs that automatically start each time the computer boots. See document CHTSR for additional information.Hardware conflictsVerify that the Device Manager has no conflicts, but if conflicts are present, resolve them.Issues with Windows XP prefetchIf you have Windows XP try deleting all files in the prefetch directory. These are prefetch files and can lower system resources if loading programs no longer being used. See our prefetch definition for additional information about prefetch.Issues in Windows 95 / 98 autoexec.bat / config.sysIf you are using Microsoft Windows 95 or Windows 98 and do not plan on running any MS-DOS programs from MS-DOS follow the below steps.

  1. Click Start, Run and type command and press enter.

  2. In the MS-DOS window type cd\ to get to C:\> and then type ren autoexec.bat autoexec.ch and ren config.sys config.ch


This will rename your autoexec.bat and config.sys and help make sure memory is being optimized through Windows.Computer or processor is overheatingMake sure your computer and processor is not overheating, excessive heat can cause a significant decrease in computer performance some processors will even lower the speed of the processor automatically to help compensate for the heat related issues. Additional information about your processor temperature and was of determining how hot it is can be found on document CH000687.Specific operating system basic troubleshootingTry running through the basic troubleshooting steps for your operating system.Erase computer and start over Finally, if none of the above solutions resolve your issues, it is recommended that you either reinstall Windows and/or erase everything and then start over. Additional information about how to do this can be found on document CH000186. Hardware issues

If your computer continues to be slow after going over each of the above recommendations it's possible that your computer is experiencing a more serious hardware related issue such as a failing component in the computer. This could be a failing or bad CPU, RAM, Motherboard, or other component.

 

Windows restarts without warning.



Question:

Windows restarts without warning.

Additional information:



  • This document is about computers that are restarting or rebooting by themselves, if your computer is turning off and remaining off please see document CH000689.

  • Some of the below steps in the answer require you open your computer and remove hardware devices, while in the computer make sure you're aware of ESD.

  • If you're looking for information about how to restart Microsoft Windows see document CH000825.


Cause:

This issue could be caused by any of the below possibilities.

  1. Software issue or error.

  2. Hardware issue or error.

  3. Heat related issue.

  4. Computer virus.

  5. Issue with operating system.


Answer:

Software issue or errorErrors generated by software programs can cause a computer to reboot unexpectedly or without warning. If you are running Windows XP see the below section "For Windows XP users" before continuing. If you are not running Windows XP or following the below steps still cause your computer to reboot without warning. Boot your computer into Safe Mode, and let the computer run in Safe Mode. Additional information and help with getting into Safe Mode can be found on document CHSAFE.If the computer is still rebooting in Safe Mode the issue is likely not software related but something else, skip to the next section. If the computer is not rebooting in Safe Mode it is likely you have software related issue. We would recommend you run through the basic troubleshooting section for your operating system.For Windows XP usersWindows XP is designed to automatically reboot each time an error occurs such as a BSoD. Although this may be nice for errors that do not occur often, users who have a re-occurring error may wish to identify the error to troubleshoot it. Below are the steps on how this feature can be disabled and enabled in Windows XP.1.     From the desktop right-click on My Computer. 2.     Click the Properties option. 3.     In the System Properties window click the Advanced tab. 4.     In Advanced click the Settings button under Startup and Recovery. 5.     In the Startup and Recovery window uncheck the Automatically restart check box. 6.     Click Ok. Now if the computer generates and error it should not automatically restart and enable you to display any errors your computer may be experiencing.Hardware issue or errorAny failing hardware component in your computer could cause your computer to unexpectedly generate an error and/or reboot without warning. If you have recently attempted to add a new hardware device, remove that device to make sure it is not causing your issues.Make sure you are not encountering any hardware conflicts by viewing Device Manager for errors. Additional information about Device Manager can be found on our Device Manager page.New drivers can also cause this issue, if you have recently performed any hardware driver updates you may wish to try an earlier version of the drivers. Additional information and help with computer drivers can be found on our drivers page.If you have updated drivers and removed any hardware that could be causing this issue and continue to experience random reboots, it's possible that the memory is bad in the computer. Additional information about testing computers memory can be found on document CH000708.Finally, hardware devices that are not installed properly in the computer can also cause random reboots. Make sure all the cables and expansion cards are connected properly to the computer. The best way to determine this is to disconnect and reconnect all cables and expansion cards. Computer virusComputer viruses such as the blaster virus are written to reboot your computer without warning. Usually these viruses will make the computer reboot ever 5, 10, 15 or 30 minutes after the computer has booted. If you believe your computer may be infected with a virus or are uncertain if your computer is infected with a virus make sure your virus scanner definitions are up to date. Additional information about checking this can be found in document CH000533. Heat related issueMany computer today are designed to turn off or automatically reboot if the computer, processor, or other device in your computer gets to hot. If you have heard any abnormal noises coming from your computer recently such as a high squealing this could indicate a fan may be failing in your computer.You can first start by verifying the fan on the power supply is working by examining the back of the computer and seeing if the fan is moving and moving smoothly. For all other fans in the computer you will need to either open the computer and make sure the fan are working (processor fan and case fan) and/or if your BIOS monitors the RPM of the fans enter BIOS and make sure the BIOS does not report any errors.Users may also be able to determine how hot their computer is by onboard thermal sensors, if your computer comes equipped with these sensors make sure your CPU is not running to hot, additional information about how hot your CPU should be running can be found on document CH000687.Issue with operating systemIf after following each of the above recommendations your computer still continues to reboot it is likely that you are experiencing a Microsoft Windows operating system related issue that cannot be explained. To help make sure this is the case please try the below steps. 1.     Reboot the computer and enter CMOS setup as the computer is booting. If you are not familiar with how to enter CMOS please read through document CH000192. 2.     After you have loaded the computer in CMOS setup let the computer sit.

If the computer does not reboot while letting the computer sit in CMOS it is likely that you are in fact experiencing an issue with Microsoft Windows and it is recommend that if you have followed all of the above recommendations that you reinstall your version of Microsoft Windows. Additional information about erasing the computer and starting over can be found on document CH000186.

 

What should I do when a computer freezes?



Question:

What should I do when a computer freezes?

Answer:

This document contains recommendations on what to do if the computer frequently freezes or completely halts. An easy way to determine if your computer is in this situation is by pressing the Num Lock button on the keyboard and watching the Num Lock led (light) to see if it turns off and/or on. If you're able to get the light to turn off and on and are running Microsoft Windows, press CTRL + ALT + DEL and attempt to end task the program. Additional information about this can be found on document CHTSR. Otherwise, continue reading this document.

Make sure the computer is really frozen

Although the above Num Lock trick is a good indication on whether or not the computer is really frozen, it's still always a good recommendation to give the computer at least a minute before turning it off.

Reboot the computer

After waiting a minute, reboot the computer; it's completely locked and will not recover. Keep in mind that all work being worked on is going to be lost and cannot be recovered if the information has not been saved or automatically saved.

Additional information:



  • See our frozen dictionary definition for additional information about this term as well as related terms.


  • If you're using Microsoft Windows and find your computer frequently freezing, see document CH000690 for additional information about what to do.




Regaining computer hard disk drive space.



Issue:

Regaining computer hard disk drive space.Answers:Microsoft Windows 98, ME, 2000, XP and Vista usersRun the Disk Cleanup option

  1. Open My Computer.

  2. Right-click on the hard disk drive that you wish to regain hard disk drive space. For example, right-click on the C: drive.

  3. Click Properties.

  4. Within the General tab, click the "Disk Cleanup" button located next to the pie chart.

  5. Windows will scan the computer for all files available to clean up.

  6. Once in the Disk Cleanup window check each of the boxes (except "compress old files") that are taking disk space and click Ok and then Yes if you wish to proceed.


Compress?When performing a Disk Cleanup you'll have an option to compress your hard drive. We strongly recommend users do not compress their hard disk drive and/or compress their old files.Additional suggestion for Windows 2000 and Windows XP users:Window 2000 and Windows XP keeps all the necessary files needed to uninstall any of the updates ever installed on your computer. Often this is several dozen updates that can take up several hundred and sometimes over 1 gig of space on your hard disk drive. See document CH000849 for additional information about these folders, how to locate them, and delete them.Disable System RestoreWindows XP users can also decrease the default space utilized by Windows System Restore and often gain several additional gigabytes of hard disk drive space. See the below steps in customizing this feature. 

  1. Click Start, Programs, Accessories, System Tools, and open "System Restore".

  2. Within the System Restore window, click "System Restore Settings".

  3. Within the "System Restore" tab you can either check the "Turn off System Restore on all drives" to completely disable this feature, or click the Settings button and decrease the space usage, which we would recommend.


Disable hibernationIf you turn your computer off instead of using hibernation mode you can disable this feature to free up a lot of disk space. Additional information about disabling hibernate can be found be found on document CH001000.Microsoft Windows 95 usersUsers can regain computer hard disk space by performing any or all of the below steps.Clean up temporary files

  1. Click Start and then Search or Find

  2. In the "File Type" text field type: *.tmp and verify the computer is looking at the C: drive or the drive that contains your operating system.

  3. Search for files and delete each of the temporary files that are found.


Delete chk filesPerform the same steps as number one except search for *.chk and delete any of the files that are found.Uninstall old programs or games no longer usedInformation about how to uninstall programs can be found in document CH000347.MS-DOS and Windows 3.x usersUsers can regain computer hard disk drive space by performing any or all of the below steps.

  1. From the MS-DOS prompt, type "del *.tmp /s" and "del *.chk /s". This command will delete any temporary files or scandisk error files on the hard disk drive.

  2. Delete any software programs or games you are no longer using from MS-DOS or from Windows.


See our del command page or our deltree command page for additional information about each of these commands.

Additional information:



  • Additional information about determining how much hard disk drive space you have can be found on document CH000369.


  • See document CH000347 for additional information about uninstalling Windows software.




How do I fix illegal operations?



Issue:

How do I fix Illegal Operations?

Cause:

Illegal Operations can be caused by several different factors. Below is a listing of the more commonly known reasons for getting an Illegal Operations.

  1. TSR's or Third-party programs causing memory conflicts or other types of conflicts with the program or programs attempting to be run.

  2. Data not being read properly from source. Running a program or game with a dirty CD can cause the CD to be read improperly causing Illegal Operations. Floppy diskettes which may contain errors can cause illegal operations.

  3. Installing a program or game on a hard disk drive that has errors or is highly fragmented.

  4. Corrupt files.

  5. Memory managers.

  6. Bad, incorrect or not the latest video drivers.

  7. Computer Virus.

  8. Added hardware

  9. Error in program coding

  10. Corruption or problem within Windows.

  11. Bad Memory, invalid bits or physically bad memory.


Solution:

TSR's or Third-party programs TSR's or Third-party programs running in the background are one of the more commonly found reasons for Illegal Operations. If you are receiving an Illegal Operation when attempting to run a game or program it is recommend that you temporarily remove or disable programs running and TSR's running in the background, ensuring that these programs are not causing your issues. Additional Information on how to remove a TSR can be found on document CHTSR. If, after removing these programs, you run the program or game and no longer receive the Illegal Operations, it is recommend that you reboot the computer and disable or End Task each program or TSR one at a time to attempt to determine which program is causing the Illegal Operation. Data not being read properly from source When running a program or game from a CD you receive an Illegal Operation, verify that the CD is clean. Additional information on how to clean a CD or CD-ROM drive can be found on our Cleaning Page. If you are running a game from a floppy diskette or other floppy media such as a zip diskette or LS120, verify that the diskette does not have physical errors with it by running a scandisk or a disk drive utility included with the drive. Installing a program or game on a hard disk drive that has errors or is highly fragmented When installing a program or game onto a hard disk drive it is recommended if you receive errors after installing that program or game that you attempt to uninstall that program or game, run a scandisk, then a defrag, and finally attempt to install the program or game again. If errors exist on the hard disk drive, they will cause the program or game to run improperly and can cause Illegal Operations.

  • Additional Information on scandisk can be found on our Scandisk Page.

  • Additional Information on defrag can be found on our Defrag Page.


Corrupt files Corrupt, bad or missing files can cause Illegal Operations. It is recommended that you attempt to uninstall and or reinstall the program causing the Illegal Operation to verify that any corrupt, bad or missing files are replaced or repaired during the reinstallation. Memory managers If you are running a memory manager that is used to obtain more memory or handle the computer memory in replace of Windows, it is recommended you temporarily disable or uninstall this program to verify it is not the memory manager causing the Illegal Operations.  Bad, incorrect or not the latest video drivers Bad, incorrect or not the latest video drivers may cause Illegal Operations when performing such tasks as moving the mouse or dragging data from one source to another as high demands are placed onto the video card. Attempt to decrease the video settings to 640 x 480, 256 colors to verify if the program or game being run is having errors because of the current video settings. Additional information on how to set the video resolution in Windows 95/98/NT can be found on document CH000190. Additional information on how to set the video resolution in Windows 3.x can be found on document CH000189. If, after attempting to adjust the video settings, you still encounter the same issue, verify the computer is utilizing the latest video card drivers by visiting our Video drivers section. Computer Virus Because computer viruses are loaded into memory and can change the data of program files when infecting a computer, ensure that a virus protection utility is installed on the computer and that you have the latest Virus Definition. Additional information about computer Viruses can be found at our Virus page. Added hardware If added hardware has been recently installed onto the computer it is likely that either the hardware is conflicting with other hardware devices on the computer or that the drivers used to install that hardware is causing issues with other hardware or software installed on the computer. If added hardware has recently been added to the computer, it is recommended that you temporarily remove that added hardware and the software associated with it to ensure it is not causing your issues.  Error in program coding If you are receiving Illegal Operations only when running a particular program, verify that the program is compatible with the Version of Windows you are running and ensure no available patches or software are available that may fix errors made during the development stages. Corruption or problem within Windows Because Windows controls the memory operations as well as the file structure and association, it is possible for Windows or files associated with Windows to become corrupted, causing Illegal Operations or other errors. It is recommended you reinstall Windows if you are experiencing Illegal Operations in Windows or more than one program trying to be run on the computer.    Bad Memory, invalid bits or physically bad memory It is possible that bad memory can cause Illegal Operations. If you have recently added memory to the computer, it is recommended that it first be removed to verify that you are not experiencing conflicts with the recently installed memory. 
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