ROG: Inaccessible Boot Device

Hi all,

Thank you anyone willing to help.

My laptop is meeting with an Inaccessible Boot Device Error.
I set up a MediCat Repair USB as my main toolkit. Have tried various interventions.

Boot-Repair-Disk has given me the following log:
sda2: __________________________________________________________________________

File system: iso9660
Boot sector type: Unknown
Boot sector info:
Operating System:
Boot files: /boot/grub/grub.cfg


================================ 1 OS detected =================================

OS#1: Windows 10 or 11 on nvme0n1p3

================================ Host/Hardware =================================

CPU architecture: 64-bit
Video: NVIDIA Corporation Intel Corporation from NVIDIA Corporation Intel Corporation
Live-session OS is Ubuntu 64-bit (Boot-Repair-Disk 64bit 20200604, bionic, x86_64)

===================================== UEFI =====================================

BIOS/UEFI firmware: GX701GVR.309 from American Megatrends Inc.
The firmware is EFI-compatible, and is set in EFI-mode for this live-session.
SecureBoot disabled - SecureBoot disabled - Please report this message to boot.repair@gmail.com.
BootCurrent: 0003
Timeout: 1 seconds
BootOrder: 0002,0003
Boot0002* Windows Boot Manager HD(1,GPT,72c209d3-0014-4ee3-9f8c-92fdcc1826e7,0x800,0x82000)/File(\EFI\MICROSOFT\BOOT\BOOTMGFW.EFI)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...a................
Boot0003* UEFI: USB DISK 3.0 PMAP, Partition 2 PciRoot(0x0)/Pci(0x14,0x0)/USB(18,0)/HD(2,GPT,7cdc8bea-1fbb-2630-fbb3-b41aabd450b3,0x7357fd8,0x10000)..BO

72293f4ecf0f5b24dce601d2c3c4b26e nvme0n1p1/Boot/bootx64.efi
72293f4ecf0f5b24dce601d2c3c4b26e nvme0n1p1/Microsoft/Boot/bootmgfw.efi
75641ea3cae97c7ea935e501d6e5e227 nvme0n1p1/Microsoft/Boot/bootmgr.efi

============================= Drive/Partition Info =============================

Disks info: ____________________________________________________________________

nvme0n1 : is-GPT, no-BIOSboot, has---ESP, not-usb, not-mmc, has-os, has-win, 2048 sectors * 512 bytes

Partitions info (1/3): _________________________________________________________

nvme0n1p1 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
nvme0n1p3 : is-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, farbios
nvme0n1p4 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, farbios

Partitions info (2/3): _________________________________________________________

nvme0n1p1 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
nvme0n1p3 : isnotESP, part-has-no-fstab, no-nt, haswinload, no-recov-nor-hid, no-bmgr, notwinboot
nvme0n1p4 : isnotESP, part-has-no-fstab, no-nt, no-winload, recovery-or-hidden, no-bmgr, notwinboot

Partitions info (3/3): _________________________________________________________

nvme0n1p1 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, nvme0n1
nvme0n1p3 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, nvme0n1
nvme0n1p4 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, nvme0n1

fdisk -l (filtered): ___________________________________________________________

Disk nvme0n1: 477 GiB, 512110190592 bytes, 1000215216 sectors
Disk identifier: 72779340-F704-4818-AA26-890FA6505FD4
Start End Sectors Size Type
nvme0n1p1 2048 534527 532480 260M EFI System
nvme0n1p2 534528 567295 32768 16M Microsoft reserved
nvme0n1p3 567296 998472334 997905039 475.9G Microsoft basic data
nvme0n1p4 998473728 1000214527 1740800 850M Windows recovery environment
Disk sda: 57.7 GiB, 61958258688 bytes, 121012224 sectors
Disk identifier: FB79C52C-4D5E-5021-8747-32FF9B9EC48A
Start End Sectors Size Type
sda1 2048 120946647 120944600 57.7G Microsoft basic data
sda2 120946648 121012183 65536 32M Microsoft basic data
Disk dm-0: 880 MiB, 922746880 bytes, 1802240 sectors
Disk identifier: 0x2c534026
Boot Start End Sectors Size Id Type
dm-0p1 * 0 1802239 1802240 880M 0 Empty
dm-0p2 964 5891 4928 2.4M ef EFI (FAT-12/16/32)
Disk zram0: 660.8 MiB, 692924416 bytes, 169171 sectors
Disk zram1: 660.8 MiB, 692924416 bytes, 169171 sectors
Disk zram2: 660.8 MiB, 692924416 bytes, 169171 sectors
Disk zram3: 660.8 MiB, 692924416 bytes, 169171 sectors
Disk zram4: 660.8 MiB, 692924416 bytes, 169171 sectors
Disk zram5: 660.8 MiB, 692924416 bytes, 169171 sectors
Disk zram6: 660.8 MiB, 692924416 bytes, 169171 sectors
Disk zram7: 660.8 MiB, 692924416 bytes, 169171 sectors
Disk zram8: 660.8 MiB, 692924416 bytes, 169171 sectors
Disk zram9: 660.8 MiB, 692924416 bytes, 169171 sectors
Disk zram10: 660.8 MiB, 692924416 bytes, 169171 sectors
Disk zram11: 660.8 MiB, 692924416 bytes, 169171 sectors

parted -lm (filtered): _________________________________________________________

sda:62.0GB:scsi:512:512:gpt: USB DISK 3.0:;
1:1049kB:61.9GB:61.9GB:ntfs:Ventoy:msftdata;
2:61.9GB:62.0GB:33.6MB:fat16:VTOYEFI:hidden, msftdata;
nvme0n1:512GB:nvme:512:512:gpt:INTEL SSDPEKNW512G8:;
1:1049kB:274MB:273MB:fat32:EFI system partition:boot, esp;
2:274MB:290MB:16.8MB::Microsoft reserved partition:msftres;
3:290MB:511GB:511GB:ntfs:Basic data partition:msftdata;
4:511GB:512GB:891MB:ntfs::hidden, diag;

blkid (filtered): ______________________________________________________________

NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
├─sda1 ntfs 6B90F64B6D23AA1E 4319f697-4a67-ef90-f80b-71f4c210767e Ventoy
└─sda2 iso9660 2020-06-13-00-42-55-00 Boot-Repair-Disk 64bit
nvme0n1
├─nvme0n1p1 vfat BEFA-A54A 72c209d3-0014-4ee3-9f8c-92fdcc1826e7 SYSTEM EFI system partition
├─nvme0n1p2 0ee9074c-c326-4942-b24e-4a67b3351f86 Microsoft reserved partition
├─nvme0n1p3 ntfs 2642FC7B42FC50D3 20293d79-e932-41fa-a405-f13e916d8602 OS Basic data partition
└─nvme0n1p4 ntfs 541E01D01E01ABD4 f78fb42c-7740-4bc8-a2be-ab69cddc842b RECOVERY Basic data partition

Mount points (filtered): _______________________________________________________

Avail Use% Mounted on
/dev/mapper/ventoy 0 100% /cdrom
/dev/nvme0n1p1 229.4M 10% /mnt/boot-sav/nvme0n1p1
/dev/nvme0n1p3 450.7G 5% /mnt/boot-sav/nvme0n1p3
/dev/nvme0n1p4 363M 57% /mnt/boot-sav/nvme0n1p4
/dev/sda2 0 100% /media/lubuntu/Boot-Repair-Disk 64bit

Mount options (filtered): ______________________________________________________

/dev/mapper/ventoy iso9660 ro,noatime,nojoliet,check=s,map=n,blocksize=2048
/dev/nvme0n1p1 vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
/dev/nvme0n1p3 fuseblk rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
/dev/nvme0n1p4 fuseblk rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
/dev/sda2 iso9660 ro,nosuid,nodev,relatime,nojoliet,check=s,map=n,blocksize=2048

====================== sda2/boot/grub/grub.cfg (filtered) ======================


==================== sda2: Location of files loaded by Grub ====================

GiB - GB File Fragment(s)
?? = ?? boot/grub/grub.cfg 1

======================== Unknown MBRs/Boot Sectors/etc =========================


/dev/nvme0n1p1: unknown GPT attributes
8000000000000000

/dev/nvme0n1p2: unknown GPT attributes
8000000000000000

/dev/nvme0n1p4: unknown GPT attributes
8000000000000001

/dev/sda2: unknown GPT attributes
c000000000000001
Unknown BootLoader on sda2

00000000 33 ed 90 90 90 90 90 90 90 90 90 90 90 90 90 90 |3...............|
00000010 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 |................|
00000020 33 ed fa 8e d5 bc 00 7c fb fc 66 31 db 66 31 c9 |3......|..f1.f1.|
00000030 66 53 66 51 06 57 8e dd 8e c5 52 be 00 7c bf 00 |fSfQ.W....R..|..|
00000040 06 b9 00 01 f3 a5 ea 4b 06 00 00 52 b4 41 bb aa |.......K...R.A..|
00000050 55 31 c9 30 f6 f9 cd 13 72 16 81 fb 55 aa 75 10 |U1.0....r...U.u.|
00000060 83 e1 01 74 0b 66 c7 06 f3 06 b4 42 eb 15 eb 02 |...t.f.....B....|
00000070 31 c9 5a 51 b4 08 cd 13 5b 0f b6 c6 40 50 83 e1 |1.ZQ....[...@P..|
00000080 3f 51 f7 e1 53 52 50 bb 00 7c b9 04 00 66 a1 b0 |?Q..SRP..|...f..|
00000090 07 e8 44 00 0f 82 80 00 66 40 80 c7 02 e2 f2 66 |..D.....f@.....f|
000000a0 81 3e 40 7c fb c0 78 70 75 09 fa bc ec 7b ea 44 |.>@|..xpu....{.D|
000000b0 7c 00 00 e8 83 00 69 73 6f 6c 69 6e 75 78 2e 62 ||.....isolinux.b|
000000c0 69 6e 20 6d 69 73 73 69 6e 67 20 6f 72 20 63 6f |in missing or co|
000000d0 72 72 75 70 74 2e 0d 0a 66 60 66 31 d2 66 03 06 |rrupt...f`f1.f..|
000000e0 f8 7b 66 13 16 fc 7b 66 52 66 50 06 53 6a 01 6a |.{f...{fRfP.Sj.j|
000000f0 10 89 e6 66 f7 36 e8 7b c0 e4 06 88 e1 88 c5 92 |...f.6.{........|
00000100 f6 36 ee 7b 88 c6 08 e1 41 b8 01 02 8a 16 f2 7b |.6.{....A......{|
00000110 cd 13 8d 64 10 66 61 c3 e8 1e 00 4f 70 65 72 61 |...d.fa....Opera|
00000120 74 69 6e 67 20 73 79 73 74 65 6d 20 6c 6f 61 64 |ting system load|
00000130 20 65 72 72 6f 72 2e 0d 0a 5e ac b4 0e 8a 3e 62 | error...^....>b|
00000140 04 b3 07 cd 10 3c 0a 75 f1 cd 18 f4 eb fd 00 00 |.....<.u........|
00000150 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000001b0 04 17 00 00 00 00 00 00 26 40 53 2c 00 00 80 00 |........&@S,....|
000001c0 01 00 00 3f e0 6f 00 00 00 00 00 80 1b 00 00 fe |...?.o..........|
000001d0 ff ff ef fe ff ff c4 03 00 00 40 13 00 00 00 00 |..........@.....|
000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.|
00000200




Suggested repair: ______________________________________________________________

The default repair of the Boot-Repair utility would not act on the MBR.
Additional repair would be performed: win-legacy-basic-fix




I also ran the MemTest86. 4 passes resulted in 5 cumulative errors with a note that RAM may be vulnerable to high frequency row hammer bit flips.

Malwarebyes resulted in no malware detected.

Any advice on my next repair steps would be appreciated. Thank you!

Additional info: It won't start in Safemode

Laptop and drive are three years old. Warranty was only for 1 year.

Have not yet wiped the drive for a clean install. Wanted to see if I could save it first.

Any advice on the MemTest86 and RAM issues?

Will try to reinstall Windows 10 when I have some spare time. Needed at the hospital due to lack of staff. Also my internet is down while I await a Modem/router replacement.