Hi,
I apologize, I made a mistake when entering the procedure in Portuguese
you will need a bootable flash drive with windows 10
1 - If you don't have a bootable pendrive, use the creation tool
Windows 10 Media Creation Tool.
Link:
https://go.microsoft.com/fwlink/?LinkId=691209
Start your computer through this way.
It is important that you check the boot order in the computer's bios beforehand.
When starting the machine with the installation DVD or USB stick, wait for the message and press any key to boot from cd or dvd… to appear at the top of the screen. and press any key to start the media.
2 - When your computer starts from the installation DVD or USB stick, click Next in the first window that appears
And then in the option Repair your computer
Now, click on Troubleshooting > Command Prompt option
3 - When the Command Prompt (CMD) appears, enter the following commands by pressing enter after each one:
bootsect /nt60 all /force /mbr
bootrec.exe /fixboot
bootrec.exe /fixmbr
bootrec.exe /ScanOs
bootrec.exe /rebuildBcd
After that, restart the machine normally, removing the DVD or USB stick you used
Once again, my sincere apologies