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Windows acpi.sys is missing or corrupt


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#1 Usseles

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Posted 04 February 2017 - 12:47 AM

Hi my computer was running fine and then when i rebooted it. It said a file is missig or corrupt. I cannot play on the computer or whenever i try to hard reset it. It says no changes have been made. I really need help please help me.

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#2 dc3

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Posted 04 February 2017 - 09:55 AM

Please run System File Checker
 
The sfc /scannow command scans all protected system files and replaces corrupted and incorrect versions with correct Microsoft versions.

Important:  There will be a short message at the end of the scan informing you of the results.  If you receive the message "no integrity violations were found" you don't need to do anything else, no corrupt files were found.  You should watch the scan to see the results at the end of the scan.

This needs to be run using an Administrator account.  

You should not do anything else with the computer while this scan is running.  Do not stop the scan as this can damage Windows files.

You will need to open the Command Prompt to run the sfc /scannow.  The easiest way to do this is to press the Windows key windowskey_zps092d5c75.png and the X key.   A menu will open with the option Command Prompt (Admin), click on this.  This will open the Command Prompt.

If you are prompted for an administrator password or for a confirmation, enter the password, or click Allow.

You will see an image similar to the one below.

command%20prompt%20w8_zpsxjmewau9.png

Copy and paste the command below in the Command Prompt, then press Enter.

sfc /scannow

This scan will take a while to run, please do not abort the scan as this can result in damage to the operating system.

If integrity issues are found in the scan please post the CBS log using the instructions below.

To find sfc /scannow log, reopen the Elevated Command Prompt using the Windows key windowskey_zps092d5c75.png and the X key method outlined in the instructions above.

When the Elevated Command Prompt opens copy and paste the following in the Command Prompt, then press Enter.  

findstr /c:"[SR]" %windir%\logs\cbs\cbs.log >"%userprofile%\Desktop\sfcdetails.txt"

This will place a new icon on the desktop titled sfcdetails.  Click/tap on this to open the log, copy and paste it in your topic.

This log usually is very large, for this reason you should use a host website like Dropbox to post the log.  You can start a free 30 day trial.  Once you have loaded the log at Dropbox post a link to the website.

 


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