Info: The digital signature for this file couldn't be verified. If you understand why the digital signature cannot be verified and want to start Windows without this file, temporarily disable driver signature enforcement.įile: \$WINDOWS.~BT\Windows\system32\winload.efi Run Startup repair from Windows 7 installation: 1. However, you can fix your master boot record and resolve the issue. If you are not using a valid device to boot your system, you may be prompted with this error. ![]() Otherwise, to start Windows so you can investigate further, press the ENTER key to display the boot menu, press F8 for Advanced Boot Options, and select Last Known Good. A digital signature is a mathematical scheme for demonstrating the authenticity of a digital message or documents. Click "Repair your computer," and then choose a recovery tool. If you have a Windows installation disc, insert the disc and restart your computer. Finally, the computer restarts and starts to boot up, when I get a black screen saying:Ī recent hardware of software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software form an unknown source. ![]() ![]() After the 20 min download, I open it and download Windows 7 to my computer.
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