I know from past the major problem was when I removed Ubuntu, I either still got into the GRUB booting menu, or I couldn't boot at all, and had to format HDD and start over. Now I found an article practically saying the Windows loader should be back upon deleting Linux partition, so I want to make sure:
If I have Windows and Ubuntu dualboot, and I want to get back to Windows booting quickly itself without choosing from any booting menu, is it enough to just delete the Ubuntu partition? Will the Windows loader override GRUB?
Note: Irrespective of which mode you install in, if you simply delete the Ubuntu partition, it won't make the Windows bootloader default automatically. You have to do it once, manually.
You'll most likely end up in a GRUB command line prompt on the next boot, from where you'll have to boot to Windows and delete the GRUB EFI Firmware entry or change the order to put the Windows bootloader in the first place.
Here is a similar question that can help in this case.
Manually delete the GRUB EFI boot entry and/or set the Windows bootloader to the first position before you get rid of Ubuntu.
This answer to a similar question explains the process for deleting it in Windows.
How are you setting your EFI variables? I was having a similar issue and was blaming it on Windows. I had been using efibootmgr to set my variables, and all would be fine until I booted Windows, and it would change. I later configured it using the firmware setup tools for my HP Envy (often mistakenly called BIOS set up) and I have not had any problems with it reverting. I am wondering if there is something about how the variables are configured by efibootmgr that Windows does not like causing Windows to take initiative and "fix" it. Conversely, perhaps the firmware tools intrinsic to the laptop set the variables to Windows liking. As I almost never boot to Windows, I really don't care much. Also, I do not use a boot loader -- I just use the efistub capability of the kernel. Windows will exist on my laptop until the day after the laptop warranty expires.
DisplayCAL (argyllcms) LUT loader can load calibration data to LUT at the highest precision available for that HW, so a video card with more that 8bit/entry LUTs and dithering at its output can show smooth gradients like a display with internal HW calibration.
Windows 7 loader by Daz is a tool used to activate Windows 7 without the product key. This Windows 7 activation tool turns your non-genuine Windows 7 into a genuine one. With the help of the Windows 7 loader free download, you can activate Windows 7 Home Premium, Professional, and Ultimate.
So but it turns out that when I "uninstalled" the Windows partition, something didn't quite update in the boot loader (I'm kind of fuzzy on my knowledge of the difference between a boot loader and a boot manager, so I might be using these terms incorrectly). When I start up my Mac holding down option, I get the following...
In the end, I gave up on actually removing the entries from wherever they're stored on the bootloader. Instead, I just installed rEFInd and manually removed the entries from the bootloader. I chose to go this route because after installing Xubuntu, this was the only way that my mac could find the xubuntu bootup file and also rEFInd has a feature where you can specify which entries you want to display and which you don't.
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I want to know does windows 10 come with any bootloader so that I can boot from Linux using that boot loader? I have made a system rescue drive in case something goes wrong. Also, I know that if in UEFI or EFI bios Fast boot or secured boot option is ticked on then I cannot boot from Debian.
I went through all of these steps however windows kept reenabling / booting first. I finally fixed it by enabling secure boot, which then allowed me to select my own "trusted" efi file in my bios (I selected grub). This then appeared in my boot order which I then put to the top and then turned off secure boot. Grub now loads first every time.This was on an acer with UEFI, GPT drives trying to dual boot Parrot OS and Win 10.
I was also facing the same issues, I have the hp envy 15-DR1XXX and I found out that the os boot manager from the list of boot devices was prioritizing the windows boot manager before the Linux one "fedora workstation". This is what I did.
Once in the Set UEFI BIOS boot entries dialog (2nd pic in tutorial) either move your grub bootloader to the top of the list, or if Windows deleted it just add a new entry, go, navigate to the EFI partition, and then the grub folder and select the grub file. Click 'Save entry' and move it to the top of the list.
I have been trying to remove the Windows Bootloader or at least set it to be the last thing in the list of UEFI loaders to try via the Acer BIOS. Nothing sticks. Every time I reboot, no matter which bootloader I have set, it will just reset to using the Windows Bootloader and try to load something that isn't there. I've removed the Windows and the recovery partitions since I don't need them.
I also installed rEFInd and it sets itself as default boot manager at the end of installation. However, as soon as I reboot, something in the Acer BIOS (I guess?) is taking over control again and forcing the Windows Bootloader entry to first place.
I solved it! I had to switch Secure Boot on so that I could get to the option "Select an UEFI file as trusted for executing" (otherwise it would be grayed out). Then I navigated to the rEFInd bootloader and Debian's grubx64. I added both, then switched OFF Secure Boot. For some reason they still stayed in the boot priority list and I could now move them up.
There might still be bits of the Microsoft loader left, but I don't care because now the correct loader gets called first. Wheee! The BIOS version is 1.08 and I would like to install 1.13 anyway. It seems that only works with Windows, though, the BIOS can't upgrade itself from inside the BIOS, huh?
At least the parts of the bootloader that I could get to are gone, I deleted the recover partition at the start of the disk (it was sda1 when I looked at it) and the larger one at the end (it was sda7). Then I moved the Microsoft directory away from EFI/Microsoft so it can't be found. I'm not sure what piece of the BIOS or the UEFI system is still pointing at this bootloader, but I'd like it to point somewhere else
Edit: For some reason I can't find the boot list that lists valid EFI loaders in the BIOS anymore. I can find the boot priority list, but there I can only say that the built-in SSD is in number 1. I can't select which of the 3 loaders to use (I'm assuming the BIOS sees 3 because it keeps wanting to boot the Microsoft loader that isn't there anymore).
If you ever decide to update BIOS, you can create a clean copy of Windows 8.1 from link below. Since your PC came pre-installed with windows 8.1, the windows key is stored on the BIOS/motherboard....so no need to enter a key.
Yes, your BIOS update is a windows application. I wouldn't recommend trying to update your BIOS unless you first install windows on your computer....as it would be too risky to do it any other way......and not worth the risk.
So I guess you could install windows again, update your BIOS, and then remove WIndows. It shouldnt take that long. But if you don't have a windows computer, you will have to ask a friend with a windows computer to make/create that USB/DVD (from that link).
We will deal with two primary aspects of exports: names, and ordinals. First, it is important to note that while every export has an ordinal, not every export has a name. Additionally, unless specified, export names are often subject to name mangling based on factors such as calling convention, whether or not the C++ compiler is being used (in which case, it will consider things such as namespace and class membership as well). Occasionally, you will also see exports that are forwarded to another DLL. This means that the function we are looking for does not actually reside in the current library, but is simply referenced as an export. In that case, we will need to load the referenced DLL, and attempt to locate the method named as the target within its exports.
This is not something we need to be extremely concerned with for the purposes of building a loader (as we are mostly relying on GetProcAddress to handle this for us), but it is still worth at least being aware of.
As with imports, we can view exports with the dumpbin utility:
Creating DLLs presents a number of challenges for developers. DLLs do not have system-enforced versioning. When multiple versions of a DLL exist on a system, the ease of being overwritten coupled with the lack of a versioning schema creates dependency and API conflicts. Complexity in the development environment, the loader implementation, and the DLL dependencies has created fragility in load order and application behavior. Lastly, many applications rely on DLLs and have complex sets of dependencies that must be honored for the applications to function properly. This document provides guidelines for DLL developers to help in building more robust, portable, and extensible DLLs.
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