Insert the original installation DVD or USB Drive.
Restart your computer.
Boot from the disc/USB.
At the Install screen, click Repair your computer or press R.
Click Command Prompt.
Type these commands: bootrec /FixMbr bootrec /FixBoot bootrec /ScanOs bootrec /RebuildBcd.
Open an elevated command prompt.
If you are running Windows 10, Windows 8.1 or Windows 8, first run the inbox Deployment Image Servicing and Management (DISM) tool prior to running the System File Checker.
Insert Windows 8.1 installation media (DVD/USB) and restart the computer.
Swipe F12 key (typically this is F12, but it can differ between computer manufacturers) and choose the drive that you inserted the installation media into.
Once the Windows Setup window appears, follow these steps: Swipe Next and select Repair your computer.
You will then see a blue screen and an option to choose.
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Method 1: Perform a Startup Repair from the Boot Options screen. Almost every computer with Windows 8, 8.1, and 10 installed has a variety of repair and cleanup utilities built into their operating system, and Startup Repair only happens with one of these tools.
Run SFC scannow Windows 10, 8 and 7
Type sfc /scannow and press Enter. Until the scan is 100% complete without any doubt, be sure to close the Command Prompt window as soon as possible. Skimming results depend on whether SFC finds corrupted file types or not.
Windows has a built-in intensity troubleshooter that can sometimes fix problems. Go to Settings > Update & Security > Troubleshoot. You can also go to the Start link, Windows expand System > Control Panel > Troubleshoot.
Tap or click “And Troubleshoot”, then dive in or click “Advanced Options”. Tap your version of Windows 8, tap or click System Restore, click the item someone wants to restore, and then tap or click Next. Follow the on-screen instructions to complete System Restore and restart your computer when prompted.
[Partition Magic] Method 1: Launch the Check Disk 10 window from the partition properties.
Method 2: CHKDSK Windows 10 with elevated command prompt.
Method 3: Restore Windows CHKDSK 10 using third party software
Method 4: Run Check Disk Windows from ten installation CDs/USB sticks. The above 3 methods will show you how CHKDSK will work if your computer is able to boot up and boot successfully.
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First, go to the authority, click on the start button and go to the command line (Admin).
When the command appears, paste: sfc /scannow
Leave the window open during the scan, which may take some time depending on your settings and devices.
What You Might Know Go to Settings > Update & Security > Troubleshoot (Windows 10) or simply Start > Settings > System > Troubleshoot (Windows 11).
To test your memory, search for “Windows Memory Diagnostic”, then launch the app.
Other troubleshooting tools include the Reliability Monitor in addition to hardware-specific programs such as the Intel Processor Diagnostic Tool.
I’m Ahmir, a freelance writer and editor who specializes in technology and business. My work has been featured on many of the most popular tech blogs and websites for more than 10 years. Efficient-soft.com is where I regularly contribute to my writings about the latest tech trends. Apart from my writing, I am also a certified project manager professional (PMP).