2008年1月6日 星期日
John Barnett's Windows Vista Support: Syste File Checker (SFC)
John Barnett's Windows Vista Support: Syste File Checker (SFC)
System File Checker (SFC)
The System File Checker is an important application which scans the integrity of all the protected system files on your PC. Should it locate an incorrect version of a specific protected file SFC automatically replaces it with the correct Microsoft version.
To check your Windows protected files, proceed as follows:
1/ Click the Start button
2/ From the Start Menu, Click All programs followed by Accessories
3/ In the Accessories menu, Right Click on the Command Prompt option
4/ From the drop down menu that appears, Click on the 'Run as administrator' option
5/ If you have the User Account Control (UAC) enabled you will be asked for authorisation prior to the command prompt opening. You may simply need to press the Continue button if you are the administrator or insert the administrator password etc.
6/ In the Command Prompt window, type: sfc /scannow and then press Enter
7/ A message will appear stating that 'the system scan will begin'
8/ Be patient because the scan may take some time
9/ If any files require replacing SFC will replace them. You may be asked to insert your Vista DVD for this process to continue
10/ If everything is okay you should, after the scan, see the following message "Windows resource protection did not find any integrity violations"
11/ After the scan has completed, Close the command prompt window
Yahoo! Answers - Windows explorer problem help!!! Urgent!?
Yahoo! Answers - Windows explorer problem help!!! Urgent!?
It would appear that you have corruption in your critical operating system files.
First update and scan your computer with your security products such as antivirus and antispyware applications in Safe Mode. If your computer comes up clean after running your resident security products, you may want to consider running a System File Checker (SFC). This can also be run in Safe Mode should you prefer.
To get into Safe Mode, reboot and then either hold down or tap the F8 key repeatedly while the computer is starting up. To run SFC, close all applications such as Office, Messenger, Email, etc, and go to:
- Start
- Run
- Type in sfc /scannow (include the space before the " / ")
What SFC does is that it attempts to fix or replace critical operating system files. Sometimes this can be done without the installation disk, however it may prompt you for the appropriate operating system installation disk. If that is the case, then you know that you definitely have major file corruption or something missing. Insert the disk if prompted. Also you should run SFC using the Administrator account.
If you have the Vista operating system, the steps are a bit different due to the UAC. See the link below.
http://vistasupport.mvps.org/system_file...
Don't surf, play games or do anything while SFC runs. After it is completed, reboot your computer.
One of the major culprits in missing or corrupt operating system files is running a registry cleaner or optimizer. They can flag important shared files for deletion or cleanup. Another cause is malware.
NOTE: Before running any registry cleaner or editing the registry, always ensure you back it up first. If the registry cleaner you are using doesn't have that function, you can do it manually. http://support.microsoft.com/kb/322756
First update and scan your computer with your security products such as antivirus and antispyware applications in Safe Mode. If your computer comes up clean after running your resident security products, you may want to consider running a System File Checker (SFC). This can also be run in Safe Mode should you prefer.
To get into Safe Mode, reboot and then either hold down or tap the F8 key repeatedly while the computer is starting up. To run SFC, close all applications such as Office, Messenger, Email, etc, and go to:
- Start
- Run
- Type in sfc /scannow (include the space before the " / ")
What SFC does is that it attempts to fix or replace critical operating system files. Sometimes this can be done without the installation disk, however it may prompt you for the appropriate operating system installation disk. If that is the case, then you know that you definitely have major file corruption or something missing. Insert the disk if prompted. Also you should run SFC using the Administrator account.
If you have the Vista operating system, the steps are a bit different due to the UAC. See the link below.
http://vistasupport.mvps.org/system_file...
Don't surf, play games or do anything while SFC runs. After it is completed, reboot your computer.
One of the major culprits in missing or corrupt operating system files is running a registry cleaner or optimizer. They can flag important shared files for deletion or cleanup. Another cause is malware.
NOTE: Before running any registry cleaner or editing the registry, always ensure you back it up first. If the registry cleaner you are using doesn't have that function, you can do it manually. http://support.microsoft.com/kb/322756
筆記型電腦電池保養須知
筆記型電腦電池保養須知
一：筆記本電腦買回來不需要反復充放電三次
除非你買到的筆記本電腦是庫存一年以上的產品，否則就不需要這樣做，因為現在的電池電芯在出廠的時候已經經過啟動，而電芯在封裝成筆記本電池的時候又經過一次相當於啟動的檢驗，因此你拿到手的電池，早已是被啟動過的了，再做三次充放電過程只是無謂的增加電池的損耗。
二：第一次充電不須充夠12小時
這對於早期那些沒有電池控制電路的鎳氫電池機型是適用的，但對於如今具有智慧充放電控制電路的筆記本電池來說卻是個笑話，當筆記本電腦電池充滿之後，充電電流就會被自動切斷，哪怕你繼續充120個小時，狀態也不會有任何變化了，一般來說，就算充電最慢的機器，6小時也完全充滿了，剩下的“充電”只是浪費自己的時間。反而是拿到新機器的時候應該先把電量放光再充電。
六：電池長期不使用的保存方法
無論是充滿還是放光，其實都是不正確的，放光電長期保存會令電芯失去活性，甚至導致控制電路保護自鎖而無法再使用，充滿電長期保存會帶來安全的隱患，最理想的保存方法是放電到40%左右然後保存，鋰電池害怕潮濕和高溫，因此應該放在陰涼乾燥的地方保存，但溫度不可乙太低，否則容量會大大減少，大約20攝氏度左右是理想的保存溫度。
一：筆記本電腦買回來不需要反復充放電三次
除非你買到的筆記本電腦是庫存一年以上的產品，否則就不需要這樣做，因為現在的電池電芯在出廠的時候已經經過啟動，而電芯在封裝成筆記本電池的時候又經過一次相當於啟動的檢驗，因此你拿到手的電池，早已是被啟動過的了，再做三次充放電過程只是無謂的增加電池的損耗。
二：第一次充電不須充夠12小時
這對於早期那些沒有電池控制電路的鎳氫電池機型是適用的，但對於如今具有智慧充放電控制電路的筆記本電池來說卻是個笑話，當筆記本電腦電池充滿之後，充電電流就會被自動切斷，哪怕你繼續充120個小時，狀態也不會有任何變化了，一般來說，就算充電最慢的機器，6小時也完全充滿了，剩下的“充電”只是浪費自己的時間。反而是拿到新機器的時候應該先把電量放光再充電。
六：電池長期不使用的保存方法
無論是充滿還是放光，其實都是不正確的，放光電長期保存會令電芯失去活性，甚至導致控制電路保護自鎖而無法再使用，充滿電長期保存會帶來安全的隱患，最理想的保存方法是放電到40%左右然後保存，鋰電池害怕潮濕和高溫，因此應該放在陰涼乾燥的地方保存，但溫度不可乙太低，否則容量會大大減少，大約20攝氏度左右是理想的保存溫度。
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