POST begins when the computer is turned on and runs through a predetermined sequence of tasks. It checks the computer’s environment and makes msvcp120.dll is missing sure the machine has the necessary hardware to function. These components include such things as the mouse, keyboard, hard drive, and memory.
Select “Launch Startup repair (Recommended)” on this screen to run startup repair. Windows 10 has its own repair tools, and Startup Repair is the frequently-used one. You can use Startup Repair to scan and repair some PC issues like damaged/corrupted system files or invalid boot files. If your Windows 10 won’t boot, you can use installation disc or system repair disc to boot into Advanced options, and then perform a Startup Repair. POST, Power On Self Test, is what every computer goes through during initial startup.
Click Advanced options when the recovery screen appears. No matter whether you use Windows 7 or Windows 10, if your operating system has trouble booting and Startup Repair can’t fix the problem, it’s worth trying the Bootrec.exe tool. With this tool you can repair the Master Boot Record (MBR), write a new boot sector, rebuild the Boot Configuration Data (BCD) and add missing Windows installations to the boot configuration data. Scan your hard disk for errors and inconsistencies using check disk tool.
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But if you still wish, you can manually run a scan. MiniTool Power Data Recoveryis a professional data recovery software for Windows. You can use this tool to easily recover lost/deleted files from Windows PC or laptop, external hard drive, SSD, USB flash drive, SD memory card, etc. in simple steps. Chances are, though, you’ll have to boot into Safe Mode to fix the problem.
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- These problems are generally hardware related.
- You should start by examining how the boot process works.
- If Disk Utility reports “overlapped extent allocation” errors, two or more files occupy the same space on your disk, and at least one of them is likely to be corrupted.
- Most of the files in the list have aliases in a DamagedFiles folder at the top level of your disk.
- You need to check each file in the list of affected files.
- Most errors during POST are easy to isolate, since the number of beeps gives clues to the type of problem, and because the error messages on the screen are usually hardware-specific.
Windows 8/10 has a redesigned chkdsk utility tool for detecting any problems in your hard drive automatically. This is because Windows 8 has a new type of file system called ReFS that doesn’t need an offline chkdsk tool to repair problems. Since this file system uses a different model for resiliency, this check is not needed.
The recovery screen stated that "Your PC/Device needs to be repaired. The Boot Configuration Data for your PC is missing or contains errors". The first thing you can try is booting into the recovery environment, if possible, and then performing a startup repair. To access the recovery environment, turn your computer on and off three times. While booting, make sure you turn off the computer when you see the Windows logo. After the third time, Windows 10 will boot into diagnostics mode.
The boot sector also hosts the Master Boot Record (MBR), which contains the disk signature, partition table for the disk, and a small bit of code called the master boot code. Once you’ve created a system repair disc or recovery drive, insert it into the PC that isn’t booting properly and boot from the disc or USB drive. You’ll be prompted to choose an installed version of Windows and you’ll see the same tools you could normally access from the boot menu. Select “Startup Repair” to run a startup repair operation. On Windows 7, you’ll often see the Windows Error Recovery screen if Windows can’t boot properly.
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POST relays error messages prior to video output through a series of beeps and, later, through error messages shown on the screen. I was greeted by a Recovery error message the other day when I powered up a PC running Microsoft’s Windows 10 operating system.