How to fix Grub error: no such partition Unknown File System (Error Fixed) 

Omggg... After 20 other videos you are the ONLY one that worked for me. Thanks alot

THANK YOUUUUUU!!!!!!!......4YEARS AND STILL SAVING LIVES

Omg, you totally saved me. I spent a entire month without using my computer because of this problem. Really thank you, your channel is amazing.

When I was typing bootrec/fixboot, it said access denied. I went on with the commands anyway. After I ran bootrec/scanos, it showed me one windows installation file. I followed the commands and selected the windows installation. It worked for me. Thanks a lot.

Years later and still saving lives. Thank you!

Thank you so much! From lots of 'know-how' there in the web only your fix of 'grub error' was simple, elegant, so well-detailed, And it worked! All the best to you!

You are the hero you are the genius you are the man. After banging my head for hours and days you are the one that got it done. Salute you! You should sit on THE IRON THRONE, You are the KING! of computers

4 years later, it was the best solution I found . Thanks you so much!!

THANK YOU very much... This REALLY helped in a very stressful situation... I've tried a lot of tutorials online for many reasons but i couldn't find a correct solution.... AND YOURS WAS THE ONE WHICH WORKED!! Again thanks ALOT.. Subscribed because it worked!

Soo many useless links on google, and this is the video you need. 5 years and still going strong 💪💪💪

Funciona perfectamente,si tienes problemas al poner el tercer código que te sale acceso denegado debes continuar normalmente y a lo último te aparecerá los sistemas que tienes y le das que poner en el arranque y todo saldrá bien,muchas gracias,de gran aporte

Indian tutorials never fail... thank you very much.

I’m at a loss for words, I thought I was doomed but you have saved the day!!!!

Although i just see your video now after 5 years , but I appreciate your technical details skills, it solved the OS problem , i really like the idea of solving technical problem manually after correct troubleshooting phase,it will give you more experience and hardening skills.... thanks a TON 🙂

Em pleno 2018 e seu vídeo ainda me salvou aqui, parabéns amigo....otima aula, show!

Great vid saved from a reinstall of windows. I did get access denied after running the command bootrec /fixboot. But I kept going to the next steps and it worked. I also went through this process twice. The first time I selected the wrong partition and it didnt boot normally, just putting it out there that there doesn't seem to be an issue if you need to go through the process again and try with a different partition.

IT SAYS. X:/Sources>bootrec /fixboot Access is denied HOW TO SOLVE IT?

After 6 hrs of struggle finally able to boot into windows. Respect.

Awesome! Thanks. I got this error after Windows 10 was installing some patches last night. Great instructional video. Thanks

Usually Windows doesn't break at all. The common mistakes are in the boot flag and grub including a place where vmlinuz is put and removed. Another option is to install Linux somewhere - even on an external disk. With sudo update-grub a rescan happen and it's quite fast to figure out.

You, Sir.... are a god-and-a-half. Multiply that by two, because you saved me and my dual-boot config with this easy-to-follow video. THANK YOU FOR THIS! And yes, you are right.... i DID forcefully remove an older version of Linux and tried to install a newer version of the same flavor of Linux, on the same partition........ that's what got me in this mess, in the first place! BLAH! 😵🤪

Amazing .........This problem had taken my 2 days, and now it's been solved by following your instructions. Thanks alot man. Love U from INDIA.

My pc was showing "No such device ASDFAS-ASDFASDF-ASDF......." but these steps solved it. Thank you so much.

thank :) 2023 It worked perfectly on HP Probook 4540S, I cloned the hhd to an ssd and it gave me this error. Despite the fact that the bootrec /fixboot appeared access denied, it still worked, continuing the procedure.

Thank you so much. Very good. Greetings from Brazil.🙏🏻

After the process the boot system did not find the OS, I selected the boot diagnose option in Windows Installation menu and it worked for me. Thanks for the video, love you so much.

X:\sources>bootrec /fixboot Acces is denied I want this solution

Thanks Bhai....!!!!!!!! You saved my quarentine...I also recovered my all data ...check this👇👇👇 error important.. If any one getting access denied error just like mine After command .....bootrec /fixboot Then type bootsect/nt60 sys Then try bootrect /fixboot It worked for me ...after spending a lot of time ....

This was what i was looking for. Saved me from a very bad day. Thanks a loadszz for the video.

First of all thank you for the amazing video. I'd like to share my experience that I was facing the same issue. I tried the solution shown in the video but didn't work. I tried again, clicked on troubleshoot option and this time I selected "Startup Repair". It took some time then it restarted the laptop and boom! it worked out. My problem is resolved. You can try this is none work. Thanks.

I still get an error, despite the fact that I inserted my usb with Windows 10 on it. It just says: windows failed to start

After watching more than 10 videos on how to solve this problem, I finally got it thanks to this genius😎🇧🇷

2019 and you still helping ppl with this vid.. thank you very much

Idk if u read this or not, but i wanna say thanks for ur step, its easy to understand and the problem its solved Thanks for the help

cant describe how am i thankful to you man , you are awesome

yo thanks that ACTUALLY helped...btw when running"fix boot" command your access gets denied dw and just follow along, it'll still fix the issue 😄

Thank you man , you deserved the sub and the like :) Worked on win7

This is the most working helpful video among all the videos which stucked in grub (linux)

I don't know how to thank you, man. You saved my life, it's really like when you find a professional Doctor who cured your disease.

after all these years, you still save us the confusion, thank you this works great

U saved my life brother!!!

If any one getting access denied error just like mine After command .....bootrec /fixboot Then type bootsect/nt60 sys Then try bootrect /fixboot It worked for me ...after spending a lot of time ....

God bless you! Love 💗💗 That was a big help. :)

The partition to be selected (and therefore the disk selected) is the one used by windows to store the rbm and boot records. This was created when windows was installed. Generally it is the partition 1 on disk 0.

Thanks for this! Massive respect mate!

This video I have watched after finally figured out the fix. I think RU-vid should take me there earlier that will save my 3-4 hours. Keep up the good work man

This channel is amazing and who ever makes videos is just brilliant

Bro after booting also, by pressing F12 key, I only getting grub rescue mode screen only. Kindly help me to get boot menu

Sir I do not have any orignal cd or pendrive plese help me

I am going to explain a very easy and silly solution to this problem which I found in a comment of a video on EasyTechs YT channel This sol. will most certainly work for only those who did the same mistake as I did which is: I had dual booted my laptop with win 10 and MX LINUX, After around a month I realised that I don't use it. So one fine day I decided to get rid of the linux from my system to free up some space and improve loading times. To do so I simply opened the disk management tool and deleted the partition in which I installed the Linux and thought work is done. But no. I should have deleted the grub as well because at the time of boot, Grub was trying to find out the linux partition, which I deleted and there was no way for me to boot into windows hence I was searching for solutions and almost all of them had the same steps which were in the end to finally use the bootrec /fixboot but in my case it said Access denied. Now coming to the solution: step 1 Reboot the system. Step 2 Open Bios menu by pressing F2 or Del and if that doesn't work check what works for your pc/laptop producer. Step 3 Look out for Boot menu in this page. Step 4 Choose the windows version on the page. You will now boot into your windows machine but the work is not over yet, as If you don't remove the grub now also you will have to follow these steps everytime to boot in windows To remove grub: you can either watch a video which I have linked from EF - Tech Made Simple, skip to 7:40 to remove grub ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-GycNpMZOQ88.html&ab_channel=EF-TechMadeSimple I strongly recommend to follow the video but if you are a mad lad you can follow the steps which I write again these are from the video linked above and all respect fot that dude. You can follow these steps:- Step 1 Open windows powershell in admin mode Step 2 Type Diskpart Step 3 list volume Step 4 select vol [The vol number in which your boot files/ grub is installed] Now since this step is crucial I want you to give full attention while identifying the volume To do so you can first open disk management and check which partition says Healthy(EFI partition) this is your volume note the size of this partition and select the vol which has equal size in powershell among all the volumes If in disk management you don't see a partition with such tag look out for system reserved healthy space or similar check the above linked video to be more clear After selecting the vol in step 4: Step 5 assign letter=A: if you have a drive with A assigned you can choose any character such as b c d e f g ...... After this step: Step 6 Open task manager Step 7 Choose File Step 8 Click on Browse Step 9 Choose the partition which you just created Step 10 Open EFI Step 11 Delete the os from there in my case it was linux you will have to delete the one you installed other than windows Step 12 In powershell type remove letter=A or the char You used. That's it Reboot and hopefully you will be logged in like normal way you used to. If this helped please copy and paste this comment on every video you searched the solution from. Aryan Tripathi, A Indian doing what an Indian does. XD

Hello! Like #1 😊

You're a lifesaver man. I've watched many videos but none of them was worth it. Only your instructions worked.... Thanks man

Nice video you have my like #9

Bhai dill se Shukriya ap ne msla solve kr diya Allah kamyab Kare ga yaar thanks you very much 😍❤️

Deixando meu like!

I was expecting a linux tool method, nice to see a way exist for Windows users.

I love you man

I tried a lot of videos and this one saved my life thank you

Will windows10 and ubuntu work together after doing this?

This guy save my life, thanks man. I wish you could educate more about dos

After 4 year this solution worked nicely..! Thank you very much you saved my hole carrier!

Tips for Lubuntu Users: Insert your Lubuntu Disc or USB to your computer, then after setting the priority to Disc Drive or USB in the BIOS restart your computer until the Installation Screen shows up. Select "Test/Check Disk for errors" then when a command prompt shows up, type in "exit" then you are now able to select your OS (for dual boot users) it works for me!

Thank you so much. This was literally the first video i found and it worked. You have my like :D

Bro you made my night easy. Today 06/2020. It works, thanks alot

if it says “access is denied”, put “bootsect/nt60 sys” before bootrec commands

Bro I've deleted linux setup from disk manager now when I started my pc I got this error :unknown filesystem What should I do ? I followed ur video but that didn't work out Pls reply

It really work just need to wait and follow the instruction properly.

Even though after 6 years the solution works as perfect...thanks a lot bro

OMG IT WORKED!!!!!!!!!!!! LIKE NOT EVEN JOKING THANK YOU SO MUCH I WAS DOING THIS ON MY DEAD NANS COMPUTER AND THIS FIXED IT!!!!!! THANK YOU SO MUCH!!!!!!!!!!!

Thank you fixed my error with Windows 7 and Ubuntu 18.04 no partition ... you the man

If there is a windows that is displayed as 1 after scanos command, do not worry about adding that windows to boot list and type 'Y'. That works for me. Save lots of time!

5:44 having error here "The selected disk is not a fixed MBR disk. The ACTIVE command can only be used on fixed MBR disks."

It really help. You saved me from loosing my data. I'm just still new to programming. Thanks.

Thank you very much. It worked like a charm. It’s such a relief that I could solve it myself without going to a professional. Im subscribed and also the liked the video!

We should setup a gofundme for this guy he has saved my work 😊

thank you so much!~ this is really helping me. i watch other videos and do search in stackover flow but its confusing and not work at all. this is the only one work.. thank you

The Requested system device cannot be found 🤔

After a lot of videos.. I came to yours and YOU SAVED all of my data.. Thank u so much 👌👌👌

bootrec /fixboot Showing error - Element not found bootrec /rebuildbcd Showing Add installation to boot list ? Yes,No,All When choosing each one showing error - Element not found Please help

2021 and you saved me. I could fix it for myself with your tutorial. Thanks a lot!

What if I don’t have a Windows installation media

One of the most clear ,simple and perfect videos on the internet and I mean it sir. Love you sir💓💓💓 And Lots and lots of respect 🔥🔥🔥🔥🔥🔥🔥

After installing Win7 theirs no option for command prompt.after installing Win7 went into Grub2 tried bootrec /fixboot but says Unknow command ’bootrec’ .I think this ten year old 1tb hard drive is totally courpted -like this for four days now,I think I will buy a new hard drive.

For all the users, I faced these problems and finally solution. Problem 1: 8gb + Standard Windows Installation - Did not work Problem 2: 8gb + Windows To Go - Did not work Problem 3: 8gb + flashed using Microsoft media creation tool - Failed Problem 4: 16gb + Flashed using Microsoft media creation tool - 🔥💯 WORKED NOTE: if you get access denied in fixboot - don't worry - just follow next other commands and it will work surely.

Thanks for this video man. After several search which resulted to nothing, you came thru for me with this video. You've earned my respect man.

Guys a better way to do this is to reinstall ubuntu. Everything will be back to normal and won't even have to worry any lost files. This method worked at least for me.

Almost waste my 2 days, Then I saw this video, thanks a lot 🙏🙏, It's working 😌

Thanks a lot man.. I thought I screwed up my PC.. but with this video, i fixed it.. ty again

I need a help: When I write "bootrec /fixboot" I receive a access denied message. How can I fix this?

I was playing with Ubuntu, later I decided to uninstall it, but I did it wrong. I did the first part, now I'm waiting for usb windows. I'll come back here and tell does it work Edit: Everything worked, you are the best ❤️

Please help me my laptop says requested system not found when I put bootrec /rebuild bcd command

Thanks bro you really saved me from installation windows again 🥺🥺 thanks a lot

When i apply bootrec /fixboot It shows me" access denied"

when i type bootrec /scanos it shows identyfy partion 1 so what to do. do i need to continue or type exit please tell bhai.........................

I'm having problem after bootrec /rebuildbcd Total identified windows installation :1 [1] c: windows Add installation to boot list?yes(y)/no(n)/all(a): a The requested system device cannot be found. What should I do now?

I'm having this error on Ubuntu 18, what should i do then, use Ubuntu installation media?

Holy shit you are a real genius I have watched like many video only your worked i was trying since 3 days, and now the issue is fixed thanks a lot 💖

Wooo boy! Thanks man! You helped me alot after I tried to in installed ubuntu through wubi. You saved me from having to doing a complete fresh re-install of windows 10!

After restarting using ctrl+alt+delete after connecting installation media, again error no such partition grub rescue screen is coming... what to do then?

I think this solution is harder than create a USB linux stick and reinstall. Honestly, it's thousand times easier!