▷ How to repair startup in windows 10

Today we return to the topic of Windows startup errors, although in this case we will focus on errors that appear in the Windows boot or startup sector. These errors make the operating system unable to boot even in safe mode. Today we will see how to repair startup in Windows 10 for possible errors that arise.

Index of contents

Through these techniques that we will see below we can repair various Windows startup errors.

What types of errors affect Windows startup

Fundamentally, these errors affect the executable file “Winload.exe” which is in charge of finding the active partition where the operating system is located to execute the boot. In turn, this program carries out the Ntoskrnl.exe process to start it.

We can find various error messages such as "0xc0000605" or "bootmgr is missing" or the error code after an update "0x00000f"

We will see then what solutions we have at our disposal to try to repair startup in Windows 10

Repair startup in Windows 10 with recovery media (WinRE)

Using this method, we will not need any Windows 10 installation DVD or USB. We will use the recovery environment available to the system when it detects boot problems or other problems.

If when starting up we do not directly access this environment, what we are going to do is turn on the computer, and when Windows starts loading we restart. Thus we repeat the procedure up to 3 or 4 times. Then the following window will appear.

• We let the recovery environment load the various tools for a few minutes until we are in the recovery options window.

• Once inside, we choose the option of "advanced options" On the next screen we will have to choose "Troubleshoot" Again we choose "advanced options" will finally appear all the recovery options that we will have available

• In this tutorial, the option that interests us is the “Startup repair”. Then, we choose this option and the system repair process will begin.

Repair startup in Windows 10 using installation media

We can also find the case in which we cannot access WinRE due to an error that directly affects the start of any element of the system.

In this case we will inevitably have to use an installation medium to run a copy of the operating system.

We can have two possibilities:

In any case, what we will have to do is create one of these two drives, we recommend creating a bootable USB in case we then have to reinstall Windows.

What we must do is place the unit in a port or floppy drive of our equipment and start it. Also, we need this unit to start before the operating system itself. To do this, visit our tutorial on modifying the BIOS boot sequence.

Once the previous preparations have been made, we start the installation unit, where the main installation screen will appear.

• We must click on the option "Repair equipment" The procedure to follow is similar. First we choose "Troubleshoot" And in this case from the available options, we choose "Command Prompt"

With the command terminal started, we must write the following command:

BOOTREC / FixMbr

What this command does is write the master boot record to the system partition that has the boot record. That is, we will overwrite the existing partition table on the hard drive.

If what we want is to write a new boot sector because the previous command has not worked for us (try restarting to see if it has been solved). To write a new boot sector we write the following:

BOOTREC / FixBoot

Using these commands should at least properly repair Windows startup. Although it is also possible that the error was not caused by the boot itself but by the system itself. for this case we will have the following options.

Repair file system with CHKDSK

A star command to perform these actions is CHKDSK.

If you want to know what we use it for, we recommend our following tutorial:

In this case, from the command prompt as we agreed in the previous section, we execute the following command:

chkdsk : / f / r

In We must put the letter of the volume that Windows C: D: has installed, etc.

Using this option the command corrects the disk errors and finds bad sectors and recovers the readable information from them.

Repair file system with SFC

As an extra option, we also have another command to check the integrity of the system files. To use it, we must write the following line in the command console:

SFC / scannow

By means of these options, we will very possibly be able to repair the startup in Windows 10, although if we do not succeed, there will always be the possibility of choosing to install the operating system, either in a new installation or by updating the one we already have. If we choose to install a copy, our files will be deleted, so we must be aware of what we do.

To carry out these actions we recommend these tutorials:

We hope this information has solved your problems with Windows startup. If you have any suggestion or want to make any clarification, leave it in the comments.