All Questions
64
questions
2
votes
2
answers
204
views
Deleted my EFI & MSR partitions by error, how to rebuild it?
I accidentally deleted every single partition of my computer except the one that Windows is installed on it. I thought it was a good idea. But it was not.
I have no more MSR or EFI partition, so when ...
- 63
0
votes
0
answers
120
views
Is it safe to move Windows system partitions with gparted
My disk has the following partitions structure:
old windows recovery partition
EFI
main windows system partition
new Windows recovery partition
free space
I'd like to extend the main partition to ...
- 111
0
votes
1
answer
70
views
How to regenerate Windows boot files without being able to boot into it
So I have an EFI dual boot system with Windows and Arch, and because of some grub tomfoolery I ended up completely wiping the EFI partition and installing systemd-boot. But now I don't have any way to ...
- 11
0
votes
0
answers
64
views
HDD EFI\MICROSOFT\BOOT both EFI\MICROSOFT\RECOVERY empty
Hi i accidently formated some parts of partisions on my laptop. Now when it stats it's just a blank blue screen , not that basic with that sad face , but really empty blue screen. I dont know how to ...
-1
votes
1
answer
821
views
Windows is not showing up in boot menu after installing Pop_OS on a separate NVMe drive
I have two NVMes on my laptop. I already have Windows 11 in one, and I wanted to install Pop_OS on the other.
After installing Pop_OS, it only showed Pop_OS in the boot menu after starting up the ...
- 3
-1
votes
1
answer
112
views
Is there any way to restore / rebuild EFI without using a Windows bootable DVD?
I've got a frustrating problem with some old hardware. Due to some awfully designed firmware which hasn't had a new release since 2016, I can't boot from a USB stick containing an unpartitioned UDF ...
- 291
0
votes
1
answer
210
views
How does \EFI\MICROSOFT\BOOT\BOOTMGFW.EFI interpret the "optional data" payload passed to it by EFI?
My computer currently has two EFI bootNNNN entries for Windows:
Boot0004 Windows Boot Manager HD(1,GPT,[redacted],0x800,0x1ff800)/File(\EFI\MICROSOFT\BOOT\BOOTMGFW.EFI)...
- 1,278
0
votes
0
answers
41
views
Mecerl laptop gives a an efi screen
when I turn on my latop, a screen apear, with the following message
Efi shell version 2.40 (5.11)
map: cannot find required map name
please help
- 1
1
vote
1
answer
750
views
How do I transfer boot partitions after installing Windows 10 and 11 to different drives?
I have a computer that dual boots Windows 10 and 11. Windows 10 was installed first on a SATA SSD, while Windows 11 was installed afterwards to a separate M.2 SSD. Now that I've been on Windows 11 for ...
- 14.6k
1
vote
0
answers
150
views
Understanding why Windows boot fails when EFI partition is moved
Situation
I got a new computer with a HDD. I put SSDs in it and made RAID1, then started installing Windows Server 2022. I wanted to use SSDs and a HDD for data. I noticed the HDD already had some ...
- 2,067
0
votes
1
answer
1k
views
Create a backup of the EFI partition on a USB
I have Ubuntu on M.2 disk y Windows 10 on un SSD
I had install windows with ubuntu already installed, Windows has put its bootloader in the EFI partition of Ubuntu, since the M.2 disk is the first ...
- 101
1
vote
1
answer
134
views
Moving a (suspected) grub partition safety when resizing partitions
I am trying to allocate more space to a windows partition by shrinking a linux partition on the same drive, but there is an EFI partition in between the linux and window partitions. This is a picture ...
- 13
1
vote
0
answers
355
views
How to move EFI folder to C drive
I want to remove an SSD from my main rig to use it in a retro machine. However I've must have placed a EFI folder there by accident when I reinstalled windows 10 on a larger NVME drive.
120GB drive ...
0
votes
0
answers
2k
views
EFI file structure
I have system partition on my Windows 10 PC. It contains files
EFI
--Microsoft
----Boot
------bootmgr.efi
------bootmgfw.efi
------bootmgr.efi
------...other files
----Recovery
--Boot
----boot64.efi
--...
- 2,593
3
votes
1
answer
1k
views
Is it safe to move Windows C:/ partition?
I was trying to install Pop OS 20.04 LTS, alongside my Windows 10 installation, but it says that the EFI partition, which is 260 MB currently, is too small and that Pop requires it to be atleast 500 ...
- 133
0
votes
1
answer
743
views
Can i delete the drive which contain microsoft and EFI named folder with FAT32 partition type
I have one partition which can be accessed through windows explorer which contains Microsoft and EFI folder
I am now confused that can I delete the partition and I can't delete it from the windows ...
1
vote
1
answer
7k
views
windows no EFI partition
I installed windows 10 using USB in UEFI mode
USB (MBR)
installation target (GPT)
the USB installation media (created on Ubuntu) dual boots Ubuntu and Windows 10 using grub.
menuentry "Windows 10&...
- 221
1
vote
3
answers
4k
views
Windows 10 crash with Nvidia 9400 driver installation iMac late 2009
I know that the problem has already been addressed but in my case by following the various guides on the net I can not solve it.
I successfully installed Windows 10 on a late 2009 iMac
and the only ...
- 11
0
votes
1
answer
188
views
Windows 10 Recovery keeps showing on boot after fresh install of Zorin OS Lite
I've recently stumped on a problem after installing Zorin OS Lite 64bit on my old laptop which was running Windows 10 64bit. So basically after installing Zorin OS I was not able to boot into my OS ...
- 1
0
votes
1
answer
69
views
EFI Windows Bootloader Recovery
i deleted windows boot loader in efi instead of ubuntu by mistake.
Now i am left with ubuntu without windows. Is there a way to fix the windows boot loader from ubuntu terminal as i couldn't open ...
- 1
1
vote
1
answer
4k
views
Why won't the Windows installer set up an EFI partition or boot entry?
I've downloaded a Windows 10 ISO image from Download Windows 10 Disc Image (ISO File) and I'm trying to install it on a SATA SSD on my desktop. Here's my intended layout:
/dev/sda (SSD)
/dev/sda1: ...
- 266
0
votes
0
answers
958
views
I cloned my Windows on SSD and I can't delete the EFI partition on HDD
I recently bought a M.2 SSD (Seagate BarraCuda) and cloned my Windows 10 (build 2004) on it from my HDD using Macrium Reflect. All good with the process, I changed the boot order from the BIOS to put ...
1
vote
0
answers
2k
views
Repair EFI/GPT Bootloader for virtual Windows 10
An interrupted system update caused the Windows 10 Pro on my virtual machine to get into a Diagnostic and Repair Mode loop and I am trying to fix. I need to access and use a certain program that is ...
- 11
0
votes
1
answer
673
views
UEFI Win10 Installation: How do I separate the data and system into different partition?
I would like to separate system partition and data partition in my 1 TB SSD when installing Win10. It was possible in the MBR days, but now, it seemed that Win10 will wipe out the entire SSD during ...
- 101
0
votes
0
answers
50
views
Installing ubuntu dualboot - windows wont start
I was installing Ubuntu on one old notebook on the same HDD as windows. There was no EFI partition so I create one during the ubuntu installation process. There were some errors and in the end, I ...
- 1
1
vote
3
answers
8k
views
Windows EFI Partition Not Editable
Based on the following question:
How to access efi partition on windows 10?
I have been unable to open the EFI partition by running the commands below:
mountvol
start \\?\Volume{xxxxxxx-ec0e-43ab-...
- 811
4
votes
2
answers
3k
views
Good way to backup laptop SSD with UEFI, Ubuntu, Windows dual boot
I have an Acer Aspire R laptop with 260GB SSD, UEFI, Ubuntu and Windows 10 dual boot. How can I backup / clone / image the whole drive to be reinstalled on a new drive if current drive fails?
a) ...
1
vote
0
answers
3k
views
The directory is not empty when using mountvol to mount efi partition
I followed the answers to this question but none of them seem to work. When I use mountvol E: /s I get the error "The directory is not empty" even though it is empty and I've formatted it multiple ...
- 11
0
votes
1
answer
347
views
Bootloader behavior when 2 OSs are installed on 2 separate storage devices - UEFI
I have a PC with Windows 7 installed on M.2 NVMe SSD (UEFI Boot). There's no way to disable this M.2 SSD in BIOS. MSI AM4 board.
Same PC also has a 500 GB SATA HDD.
I want to install Windows 10 on ...
- 1,708
4
votes
0
answers
2k
views
Cannot repair bcd because the windows installation cannot be found
I'm trying to rebuild my BCD but my windows7 installation cannot be found.
So far, I have typed these commands from the Windows7 install DVD (which I booted in UEFI mode) :
X:\sources>chkdsk /r c:...
- 1,883
1
vote
1
answer
216
views
Script before OS starting
I need to run a script before the operating system starts.
The script reads a text file (on file-system FAT32), if the result is "A", then launch OS1, elseif the result is "B", then launches OS2 (...
- 33
4
votes
3
answers
13k
views
How do I run CHKDSK on EFI System Partition?
I tried dual booting Ubuntu with Windows 10 in my Dell laptop. An grub-install error appeared. Checking through the log files, a launchpad expert advised that my EFI sytem partition is corrupt and I ...
2
votes
1
answer
5k
views
Read/Write EFI Variables from Windows 10 shell
I need to write a specific set of bytes (that I have stored in a file) to a specific EFI Variable on Windows 10. I understand this is possible in C/C++ with the Get/SetFirmwareEnvironmentVariable ...
- 121
2
votes
2
answers
19k
views
Fedora add Windows to grub
I used to have Windows + Linux Mint in dualboot, but now I decided to install Fedora instead of Mint. I have Windows installed for about a month and now I finally have the time to Install fedora. ...
- 243
1
vote
3
answers
2k
views
During Windows installation it thinks that EFI partition is not in fat32, but it is in fat32
I have Ubuntu installed on hdd, recently I've converted that disk to GPT using gdisk and created EFI partition formatted in fat32 (right after convertion it was ntfs, but then I've formatted it into ...
- 11
0
votes
2
answers
5k
views
Install Windows 10 with larger EFI partition
Is there a way to do a fresh install of Windows 10 on an empty drive with a larger EFI partition than 100MB (approx 200MB)? I plan to dual boot OS X and I want to avoid a certain issue that might pop ...
- 11
2
votes
1
answer
2k
views
Can Windows 10 have a partition type of GPT with a UEFI boot mode?
Can Windows 10 have a partition type of GPT with a UEFI boot mode?
You'd need to ask somebody from Microsoft why they tie their
partition table type (GPT vs. MBR) to their boot mode (EFI/UEFI vs.
...
- 1,650
1
vote
1
answer
207
views
how to get boot parameters for GPT with UEFI
Wikipedia redirects "Windows Boot Manager" to the Windows Vista Startup Process. To avoid a problem dual booting Windows 10 with Linux, I would want to note the UEFI and GPT configuration from a live ...
- 1,650
0
votes
1
answer
1k
views
Does rEFInd support USB-OTG as boot device?
I'm having a hard time at installing Ubuntu on my Acer Iconia W10 Tablet.
I modified boot priority to:
USB Stick/HDD
USB CD/DVD reader
The so-called "Windows Boot Manager" (as unclear as this)
Even ...
- 1,041
26
votes
8
answers
70k
views
How to hide EFI-partition?
For some sort of reason my EFI-partition shows up in disk management as well as This PC.
Is there a way to hide again without messing up my system? Preferably by command line (diskpart).
- 981
0
votes
1
answer
2k
views
Restoring Windows Bootloader
Upon trying to install another operating system that used the Clover Bootloader and failing, I now can not boot into my Windows installation, getting boot0ss: error. I never had access to the failed ...
- 136
2
votes
1
answer
31k
views
How do edit the contents of my BIOS boot list?
So the other day I installed Windows 7 on a GPT disk. It works fine. Today I went to boot off my Linux Live USB and I noticed Windows Boot Manager was in the list. I use a traditional BIOS and it ...
- 157
0
votes
1
answer
1k
views
EFI dual boot windows 7 under fedora 23
I recently installed Fedora 23 on my Windows PC, which is running Win 7 Prof 64 bit.
Before that I had a dual boot system with my above Win Sys and OpenSuse which was running after couple of minutes ...
- 1
1
vote
1
answer
6k
views
How to install Windows 10 after Debian
I want to install Windows 10 on my laptop with Debian Jessie on it. I installed my Debian in EFI mode with graphical options. Could someone point me to a good tutorial, what I have to set, what to ...
- 13
0
votes
1
answer
68
views
Restore Windows From Data Backup?
So I managed to break my partition table, but I was able to recover my entire C: drive and copy every file and folder to an external drive. My question now becomes, is there anyway to, when I ...
- 46
0
votes
1
answer
278
views
No disks connected, why is Windows Boot Manager still a boot option?
Title covers 98% of my question.
I'm trying to figure out what the Windows Boot Manager BIOS boot option is. In doing so, I've disconnected every memory device that could possibly hold an OS, ...
user500667
0
votes
1
answer
952
views
What is the method of creating a Windows-booting EFI System partition?
I thought an EFI System Partition that boots Windows (specifically Win10, but I think the concept is the similar for all NT-based Windows) was a unique type of EFI system partition that can only be ...
user500667
11
votes
3
answers
21k
views
I want to expand a partition on my boot SSD, but there is a Recovery Partition and EFI System Partition in the way. How can I get around this?
Here is a screenshot in Windows Disk Management showing the partition layout on my disk:
I wish to expand the Windows partition (C:\ drive, "Boot") into the 16 GB of unallocated space. However, ...
- 391
0
votes
1
answer
1k
views
Prevent Windows from creating another EFI System Partition
/* EDIT
* I used the Windows 10 enterprise evaluation is (Build 10240)
*/
I already have an existing ESP but Windows doesn't want to acknowledge it, apparently.
I created the ESP with GNU parted ...
- 2,059
2
votes
3
answers
4k
views
Images (e.g. with Clonezilla) of Windows and Linux on a UEFI computer
I use Clonezilla with success for many years to make images from partitions that host Windows 7 or smaller and Ubuntu and other operating systems. Making images and restore them was easy for me.
But ...
- 121