Jiangmin mining
Publish: 2021-03-30 06:19:14
1. The reason and solution of 100% CPU utilization in WinXP
when we use WinXP operating system, we have more or less encountered the problem of 100% CPU utilization, which has a great impact on our normal use of computers. Let's take a look at the causes and solutions of CPU utilization rate reaching 100%< Anti virus software, drivers and viruses may be the culprits
1. Anti virus software causes failure
as the new versions of kV, Jinshan and Ruixing all join in the random monitoring of web pages, plug-ins and e-mails, the burden of the system is undoubtedly increased. Treatment: there is basically no reasonable treatment, try to use the least monitoring services, or upgrade your hardware
2. The driver has not been certified, resulting in 100% CPU resource occupation
a large number of test version drivers flooding on the Internet, resulting in hard to find fault causes. Processing method: pay special attention to the graphics card driver. It is recommended to use the driver certified by Microsoft or officially released, and strictly check the model
, version
3. Viruses and Trojans cause a large number of worms to replicate rapidly within the system, resulting in a high CPU utilization rate. Solution: clean up the system memory and local hard disk thoroughly with reliable antivirus software, and open the system setting software to check whether there are abnormal startup programs. Update anti-virus software and firewall regularly, strengthen anti-virus awareness and master correct anti-virus knowledge< 4. Control panel - management tools - Services - rising realtime monitor service. Right click and change to manual
5. Start - & gt;; Run - & gt;; msconfig-> Start, close unnecessary startup items, restart
6. View the "svchost" process
svchost.exe is a core process of Windows XP system. Svchost.exe not only appears in Windows XP, but also exists in Windows system using NT kernel. Generally, in Windows 2000, the number of svchost.exe processes is two, while in Windows XP, the number of svchost.exe processes rises to four or more
· network card problems may also cause CPU utilization of 100%
7. Check the network connection. Mainly network card
8. View network connections
when a computer with Windows XP installed as a server receives a connection request on port 445, it allocates memory and allocates a small amount of CPU resources to serve these connections. When the load is too heavy, CPU utilization may be too high, because there is an inherent trade-off between the number of work items and responsiveness. You need to determine the appropriate maxworkitems settings to improve system responsiveness. If the value is not set correctly, the responsiveness of the server may be affected, or a user monopolizes too many system resources
to solve this problem, we can modify the registry: expand [HKEY] in the registry editor in turn_ LOCAL_ ] Branch, and create a new DWORD value named "maxworkitems" in the right window. Then double-click the value, type the following values in the open window and save to exit: if the computer has more than 512MB of memory, type "1024"; If the computer memory is less than 512 MB, type 256
· use the right mouse button cautiously in XP
9. Let's see if the use of the right mouse button in Windows XP causes the CPU to occupy 100%
recently, we reported that using the right mouse button in the resource manager will cause the CPU to occupy 100%. Let's see what's going on
symptom:
in resource manager, when you right-click a directory or a file, you may have the following problems:
any file operation may stop at that time
the network connection speed will be significantly reced
all stream input / output operations, such as listening to music with Windows media player, may be the cause of music distortion:
when you right-click a file or directory in the explorer, when the shortcut menu is displayed, the CPU utilization will increase to 100%, and when you close the shortcut menu, it will return to the normal level<
solution:
method 1: close "use transition effect for menu and tool tips"
1. Click "start" -- "control panel"
2. Double click "display" in "control panel"
3. Click "appearance" tab in "display" attribute
4. Click "effect" in "appearance" tab
5 In the Effects dialog box, clear the check box before use transition effects for menus and tool tips, and then click OK twice
method 2: when using the right mouse button to click on a file or directory, first use the left mouse button to select your target file or directory. Then use the right mouse button to pop up the shortcut menu
5. Viruses, Trojans and spyware lead to 100% CPU utilization
the failure of 100% CPU utilization is often caused by viruses and Trojans, such as shockwave virus. We should first update the virus database and scan the whole computer. Then, in the use of anti spyware ad aware, check whether there is spyware. Many friends on the forum have encountered svchost.exe occupying 100% of CPU, which is often a sign of poisoning
the system services of svchost.exe in windows are implemented in the form of dynamic link library (DLL). Some of them point the executable program to svchost.exe, which calls the DLL of the corresponding service and adds the corresponding parameters to start the service. Because of its particularity and importance, it is easier to become the host of some virus Trojans< In the system.ini file, there is a "shell = file name" under [boot]. The correct file name should be "explorer. Exe". If it is not "explorer. Exe", but "shell = explorer. Exe program name", then the following program is the "Trojan horse" program, that is to say, you have been in the "Trojan horse"
in the registry, the situation is the most complicated. Open the registry editor with regedit command, and click "hkey-local -" directory to check whether there is an unfamiliar auto start file in the key value with the extension of exe. Here, remember: some files generated by "Trojan" programs are very similar to the system's own files, and want to muddle through by camouflage, Such as "acid battery v1.0 Trojan horse", it changes the
Explorer key value under the registry "hkey-local -" to Explorer = "C: windowsexplorer. Exe". There is only "I" and "L" difference between Trojan horse program and real explorer. Of course, there are many places in the registry where you can hide "Trojan horse" programs, such as "hkey-current -" and "hkey-users * *", the best way is to find the file name of "Trojan horse" program under "hkey-local -" and then search the whole registry<
7. The common cause of such failures is the use of P4 CPU with hyper threading function. I looked up some information, but there was no clear explanation. According to some netizens, hyper threading seems to conflict with Skynet firewall, which can be solved by uninstalling Skynet and installing other firewalls, or by turning off hyper threading function in BIOS<
8. Avi video file causes 100% CPU utilization rate
in Windows XP, after clicking a large avi video file, the system may feign death and cause 100% utilization rate of the explore.exe process. This is because the system needs to scan the file first, check all parts of the file, and build an index. If the file is large, it will take a long time and cause 100% CPU utilization. Solution: right click the folder where the video file is saved, and select properties - & gt; General - & gt; Advanced ", remove the check box in front of" allow Indexing Service to index this folder for quick search "
9. The CPU utilization rate of anti-virus software is 100%
nowadays, anti-virus software generally adds the real-time monitoring function of web page, e-mail and personal privacy, which will undoubtedly increase the burden of the system. For example: when playing games, it will be very slow. Closing the antivirus software is the most direct solution
10. When processing large word files, the CPU utilization rate is too high
the above problems usually cause the computer to feign death, which are caused by the spelling and grammar check of word. Just open the "Tools Options" of word and enter the "spelling and grammar" option card, Remove the check box in front of "check spelling as you type" and "check grammar as you type"
11. Network connection leads to 100% CPU utilization.
when your Windows 2000 / XP server receives a connection request from port 445, the system will allocate memory and a small amount of CPU resources to serve these connections. When the load is too heavy, the above situation will occur. To solve this problem, you can modify the registry. Open the registry, find HKEY - Local - and create a new one on the right named & quot;; maxworkitems" Then double-click the value. If your computer has more than 512 memory, set it to & quot;; 1024"， If it is less than 512, it is set to 256.
some imperfect drivers can also cause excessive CPU utilization
frequent use of standby function can also cause the system to automatically turn off the DMA mode of hard disk. This will not only rece the performance of the system greatly and slow down the startup speed of the system, but also make the CPU utilization rate of the system 100% when running some large-scale software and games, resulting in a pause
possible viruses in the process when the CPU is 100%
system idle process
process file: [system process] or [system process]
process name: windows memory processing system process
Description: Windows page memory management process, with level 0 priority
Introction: the process runs on each processor as a single thread, and allocates processor time when the system does not process other threads. The larger the CPU occupancy rate is, the more CPU resources are available for allocation. The smaller the number is, the less CPU resources are available
spoolsv.exe
process file: spoolsv or spoolsv.exe
process name: printer spooler service
Description: Windows print task control program, which is used to make the printer ready
Introction: the spooler service is used to manage print and fax jobs in the buffer pool<
spoolsv.exe → print task control program, which is usually loaded for the preparation work before the list machine prints
spoolsv.exe, if it is often increased, it may be caused by virus infection
at present, the common is:
backdoor / byshell (also known as invisible robber, invisible killer XiMenqing virus)
damage degree: medium
affected systems: Windows 2000, Windows XP, Windows Server 2003
when we use WinXP operating system, we have more or less encountered the problem of 100% CPU utilization, which has a great impact on our normal use of computers. Let's take a look at the causes and solutions of CPU utilization rate reaching 100%< Anti virus software, drivers and viruses may be the culprits
1. Anti virus software causes failure
as the new versions of kV, Jinshan and Ruixing all join in the random monitoring of web pages, plug-ins and e-mails, the burden of the system is undoubtedly increased. Treatment: there is basically no reasonable treatment, try to use the least monitoring services, or upgrade your hardware
2. The driver has not been certified, resulting in 100% CPU resource occupation
a large number of test version drivers flooding on the Internet, resulting in hard to find fault causes. Processing method: pay special attention to the graphics card driver. It is recommended to use the driver certified by Microsoft or officially released, and strictly check the model
, version
3. Viruses and Trojans cause a large number of worms to replicate rapidly within the system, resulting in a high CPU utilization rate. Solution: clean up the system memory and local hard disk thoroughly with reliable antivirus software, and open the system setting software to check whether there are abnormal startup programs. Update anti-virus software and firewall regularly, strengthen anti-virus awareness and master correct anti-virus knowledge< 4. Control panel - management tools - Services - rising realtime monitor service. Right click and change to manual
5. Start - & gt;; Run - & gt;; msconfig-> Start, close unnecessary startup items, restart
6. View the "svchost" process
svchost.exe is a core process of Windows XP system. Svchost.exe not only appears in Windows XP, but also exists in Windows system using NT kernel. Generally, in Windows 2000, the number of svchost.exe processes is two, while in Windows XP, the number of svchost.exe processes rises to four or more
· network card problems may also cause CPU utilization of 100%
7. Check the network connection. Mainly network card
8. View network connections
when a computer with Windows XP installed as a server receives a connection request on port 445, it allocates memory and allocates a small amount of CPU resources to serve these connections. When the load is too heavy, CPU utilization may be too high, because there is an inherent trade-off between the number of work items and responsiveness. You need to determine the appropriate maxworkitems settings to improve system responsiveness. If the value is not set correctly, the responsiveness of the server may be affected, or a user monopolizes too many system resources
to solve this problem, we can modify the registry: expand [HKEY] in the registry editor in turn_ LOCAL_ ] Branch, and create a new DWORD value named "maxworkitems" in the right window. Then double-click the value, type the following values in the open window and save to exit: if the computer has more than 512MB of memory, type "1024"; If the computer memory is less than 512 MB, type 256
· use the right mouse button cautiously in XP
9. Let's see if the use of the right mouse button in Windows XP causes the CPU to occupy 100%
recently, we reported that using the right mouse button in the resource manager will cause the CPU to occupy 100%. Let's see what's going on
symptom:
in resource manager, when you right-click a directory or a file, you may have the following problems:
any file operation may stop at that time
the network connection speed will be significantly reced
all stream input / output operations, such as listening to music with Windows media player, may be the cause of music distortion:
when you right-click a file or directory in the explorer, when the shortcut menu is displayed, the CPU utilization will increase to 100%, and when you close the shortcut menu, it will return to the normal level<
solution:
method 1: close "use transition effect for menu and tool tips"
1. Click "start" -- "control panel"
2. Double click "display" in "control panel"
3. Click "appearance" tab in "display" attribute
4. Click "effect" in "appearance" tab
5 In the Effects dialog box, clear the check box before use transition effects for menus and tool tips, and then click OK twice
method 2: when using the right mouse button to click on a file or directory, first use the left mouse button to select your target file or directory. Then use the right mouse button to pop up the shortcut menu
5. Viruses, Trojans and spyware lead to 100% CPU utilization
the failure of 100% CPU utilization is often caused by viruses and Trojans, such as shockwave virus. We should first update the virus database and scan the whole computer. Then, in the use of anti spyware ad aware, check whether there is spyware. Many friends on the forum have encountered svchost.exe occupying 100% of CPU, which is often a sign of poisoning
the system services of svchost.exe in windows are implemented in the form of dynamic link library (DLL). Some of them point the executable program to svchost.exe, which calls the DLL of the corresponding service and adds the corresponding parameters to start the service. Because of its particularity and importance, it is easier to become the host of some virus Trojans< In the system.ini file, there is a "shell = file name" under [boot]. The correct file name should be "explorer. Exe". If it is not "explorer. Exe", but "shell = explorer. Exe program name", then the following program is the "Trojan horse" program, that is to say, you have been in the "Trojan horse"
in the registry, the situation is the most complicated. Open the registry editor with regedit command, and click "hkey-local -" directory to check whether there is an unfamiliar auto start file in the key value with the extension of exe. Here, remember: some files generated by "Trojan" programs are very similar to the system's own files, and want to muddle through by camouflage, Such as "acid battery v1.0 Trojan horse", it changes the
Explorer key value under the registry "hkey-local -" to Explorer = "C: windowsexplorer. Exe". There is only "I" and "L" difference between Trojan horse program and real explorer. Of course, there are many places in the registry where you can hide "Trojan horse" programs, such as "hkey-current -" and "hkey-users * *", the best way is to find the file name of "Trojan horse" program under "hkey-local -" and then search the whole registry<
7. The common cause of such failures is the use of P4 CPU with hyper threading function. I looked up some information, but there was no clear explanation. According to some netizens, hyper threading seems to conflict with Skynet firewall, which can be solved by uninstalling Skynet and installing other firewalls, or by turning off hyper threading function in BIOS<
8. Avi video file causes 100% CPU utilization rate
in Windows XP, after clicking a large avi video file, the system may feign death and cause 100% utilization rate of the explore.exe process. This is because the system needs to scan the file first, check all parts of the file, and build an index. If the file is large, it will take a long time and cause 100% CPU utilization. Solution: right click the folder where the video file is saved, and select properties - & gt; General - & gt; Advanced ", remove the check box in front of" allow Indexing Service to index this folder for quick search "
9. The CPU utilization rate of anti-virus software is 100%
nowadays, anti-virus software generally adds the real-time monitoring function of web page, e-mail and personal privacy, which will undoubtedly increase the burden of the system. For example: when playing games, it will be very slow. Closing the antivirus software is the most direct solution
10. When processing large word files, the CPU utilization rate is too high
the above problems usually cause the computer to feign death, which are caused by the spelling and grammar check of word. Just open the "Tools Options" of word and enter the "spelling and grammar" option card, Remove the check box in front of "check spelling as you type" and "check grammar as you type"
11. Network connection leads to 100% CPU utilization.
when your Windows 2000 / XP server receives a connection request from port 445, the system will allocate memory and a small amount of CPU resources to serve these connections. When the load is too heavy, the above situation will occur. To solve this problem, you can modify the registry. Open the registry, find HKEY - Local - and create a new one on the right named & quot;; maxworkitems" Then double-click the value. If your computer has more than 512 memory, set it to & quot;; 1024"， If it is less than 512, it is set to 256.
some imperfect drivers can also cause excessive CPU utilization
frequent use of standby function can also cause the system to automatically turn off the DMA mode of hard disk. This will not only rece the performance of the system greatly and slow down the startup speed of the system, but also make the CPU utilization rate of the system 100% when running some large-scale software and games, resulting in a pause
possible viruses in the process when the CPU is 100%
system idle process
process file: [system process] or [system process]
process name: windows memory processing system process
Description: Windows page memory management process, with level 0 priority
Introction: the process runs on each processor as a single thread, and allocates processor time when the system does not process other threads. The larger the CPU occupancy rate is, the more CPU resources are available for allocation. The smaller the number is, the less CPU resources are available
spoolsv.exe
process file: spoolsv or spoolsv.exe
process name: printer spooler service
Description: Windows print task control program, which is used to make the printer ready
Introction: the spooler service is used to manage print and fax jobs in the buffer pool<
spoolsv.exe → print task control program, which is usually loaded for the preparation work before the list machine prints
spoolsv.exe, if it is often increased, it may be caused by virus infection
at present, the common is:
backdoor / byshell (also known as invisible robber, invisible killer XiMenqing virus)
damage degree: medium
affected systems: Windows 2000, Windows XP, Windows Server 2003
2. 1. At present, the netizens who planted the bitcoin virus are all the users who used the campus network. According to the network security agency, this is a virus attack launched by lawless elements using the "eternal blue" leaked from NSA hacker's weapon library“ "Eternal blue" will scan windows machines with open 445 file sharing port, without any user operation. As long as the machine is turned on and connected to the Internet, criminals can plant blackmail software, remote control Trojan horse, virtual currency mining machine and other malicious programs in computers and servers
users are advised to close the 445 file sharing port first. Shut down the computer, including TCP and UDP protocol 135 and 445 ports, win7 system pay special attention to
2, do not use the campus network, CMCC is not good
3, install anti blackmail protection tools, do not visit the website, do not open suspicious mail and files
4, fast multiple backup data. If it has been poisoned, the hard disk should be lowered before the system is reinstalled. At present, Microsoft has released a patch ms17-010 to fix the system vulnerability of "eternal blue" attack. Install this patch for the computer as soon as possible to avoid being attacked by virus through 445 file sharing port
for XP, 2003 and other machines that Microsoft no longer provides security updates, it is recommended to use 360 "NSA Arsenal immune tool" to detect whether there are vulnerabilities in the system and close the ports affected by the vulnerabilities
for computers infected with bitcoin virus, it is impossible to only reload disk C. all disks need to be formatted and repartitioned before the system is installed to solve the problem. However, in this case, the important data without backup cannot be recovered. Therefore, users who have not been attacked by bitcoin virus for the time being should backup the important data first to avoid losses.
users are advised to close the 445 file sharing port first. Shut down the computer, including TCP and UDP protocol 135 and 445 ports, win7 system pay special attention to
2, do not use the campus network, CMCC is not good
3, install anti blackmail protection tools, do not visit the website, do not open suspicious mail and files
4, fast multiple backup data. If it has been poisoned, the hard disk should be lowered before the system is reinstalled. At present, Microsoft has released a patch ms17-010 to fix the system vulnerability of "eternal blue" attack. Install this patch for the computer as soon as possible to avoid being attacked by virus through 445 file sharing port
for XP, 2003 and other machines that Microsoft no longer provides security updates, it is recommended to use 360 "NSA Arsenal immune tool" to detect whether there are vulnerabilities in the system and close the ports affected by the vulnerabilities
for computers infected with bitcoin virus, it is impossible to only reload disk C. all disks need to be formatted and repartitioned before the system is installed to solve the problem. However, in this case, the important data without backup cannot be recovered. Therefore, users who have not been attacked by bitcoin virus for the time being should backup the important data first to avoid losses.
3. It has nothing to do with your machine
it's a network problem
it's a network problem
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