1. What is System File Checker?
Commands and Functions of System File Checker
|sfc /scannow||Immediately scan the integrity of all protected system files and recover as mush as possible.|
|sfc /scanonce||Scan the integrity of all protected system files in the next start and recover as much as possible.|
|sfc /scanboot||Scan the integrity of all protected system files in each start and recover as much as possible.|
|sfc /purgecache||Clear file cache and scan all protected system files. (It is used to free disk space when system disk space is not enough.)|
|sfc / verifyonly||Immediately scan the integrity of all protected system files but does not recoverr.|
|sfc /scanfile||Scan the integrity of the cited files; if any problem, recover them (the complete path is necessary).|
|sfc /verifyfile||Check the integrity of files with complete paths, no recovery step included.|
|sfc /offbootdir||Assign the position of the offline start directory in offline recovery.|
|sfc /offwindir||Assign the position of offline Windows directory for offline recovery.|
|sfc /offlogfile||Optionally enable logging through the designated path of the log files in offline recovery.|
|sfc /cancel||Stop scanning all stopped, protected system files.|
|sfc /enable||Enable Windows file protection for normal operation.|
|sfc /quiet||Silently replace all incorrect system file versions.|
|sfc /cachesize=x||Set the file cache size.|
2. How to Use System File Checker in Windows 10/7 to Check and Recover System Files?
Create Administrator Account with Renee Passnow
Step 1: Download and install Renee PassNow in any workable Windows computer.
Step 2: Open the software. Select one option from [Crate a Live USB] and [Create a Live CD]. Then, select [x64] or [x86] according to your computer. Next, click on [Download Now] to download the licensed ISO. Remember to activate the software beforehand. After that, click on [Create USB] to create the boot media.
Step 3: Boot the target PC from the created password reset USB/CD/DVD.
You will boot the target computer via a new created reset disk. Firstly, please hold a hot key to enter the BIOS menu and put CD-ROM or Removable Devices as the first choice. Please click here to know about how to change the boot order of your computer. After changing it successfully, please remember to save your setting and then restart your PC.
Step 4: Select “PassNow!”.
Step 5: Click “Create new account” to create a new administrator to quickly access your PC.
The created administrator account named “Reneelab” with administrator rights, and its default password is “123456789”. You are able to change the password of target account with this new created administrator.
Run System File Checker to Recover System Files
System Starts as Usual
System Fails to Boot
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