Hardware Drivers :: Data Partition Detected As EFI
Sep 15, 2014
I run Windows in the following configuration:
I have an SSD and a normal HDD. The Windows system itself runs on the SSD for faster boot-up, and all my user data is stored on the HDD. I recently installed Linux as a dual boot option, but due to issues with UEFI and Legacy BIOS settings, I decided to uninstall my Linux. My Linux was similarly configured, with /boot residing on the SSD and the rest of it residing on an ext4-formatted partition on my HDD.
I uninstalled Linux using the boot-repair livedisc, and I can boot just fine into Windows 8.1. However, now my Windows Data partition on the HDD cannot be accessed. On boot, it doesn't even mount, and links to my Downloads or Documents folders are broken.
The Disk Management tool lists the Data partition as an EFI System Partition, when it was previously just a normal Primary NTFS partition. GParted detects the partition as an NTFS one. DiskPart also indicates the partition is hidden. Mounting the partition works fine using DiskPart but I cannot access it as it throws an access denied error, and says I do not have permission to access the drive. I have tried changing the security options in the security tab to give me full control, but to no avail. I can use CMD to access it though, and view things, but I cannot seem to move or copy data out of it. I have tried using the convert utility in CMD to convert the EFI partition to NTFS (EFI is FAT32, IIRC) but it says that the partition is already NTFS.
How can I fix this or at least enter the partition and backup my data before performing a format and restore? What data should I provide to get proper support?
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Aug 15, 2014
I recently installed some updates on my laptop (running windows 8.1) which required a restart. Upon restarting however I received the following error message: wheauncorrectableerror. I tried to start up in safe mode, but to no avail, I still got the same message. I tried to restore the system to before the update, but that failed. I ran command prompt with chkdsk and it failed stage 3, with the following error: "7 data files processed. Errors detected in the uppercase file." I'm not sure what that means. Is the problem with the hardrive?
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Apr 28, 2013
PC crashed, I get Toshiba splash screen at start up then nothing. With recovery stick I can get tools but cannot use them... I get either missing partition or hard drive locked message. I can get to command prompt though where it appears that the partition containing Windows is not being recognized at all...the size of the partition is not even showing up. This all started when I returned to my PC to find it unresponsive and had to power it off with the power button. PC was working fine for months after upgrading from Windows 7.
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Mar 13, 2014
Recently i purchased HP Pavilion 14-b030tu Sleekbook off eBay where the guy told me that the computer was always stuck in automatic repair.
So i ran HP diagnostics on the drive and it came back with the "Short DST failed", i know that when the short dst failed tests means that the hdd is about to die. Currently i have removed the hdd and have connected it to my computer where it still gets recognized as a hard drive.
Because i dont want to spend money buying a USB with the HP recovery image on it:
1) Any way to recover data off a GPT hard drive? Ive tried Active@ File Recovery but it doesn't allow me to do anything except super scan the drive.
2) Where the recovery image is stored in harddrives from HP ultrabooks that run Windows 8?
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Jul 9, 2013
it appears that windows cannot recognize my dvd drive after i used the option in the general menu to remove everything and reinstall windows,
When I check it in the device manager, it reports the dvd drive as hidden, and need to connect it to solve the problem, but i am pretty positive the dvd drive is connected since i can press the button and the tray will eject (and if i insert a disk i can hear it spinning), check the two attached images for this,
i have tried everything, like updating the firmware (it only worked once when the dvd drive was detected, for otherwise the update app would just request you to connect the drive to update it), it didn't work (in this case, i can see it in windows explorer, but cannot push the button to eject the disk tray), use the reg. fix found on the internet, resetting windows again (after the first reset, the dvd drive can be detected but i cannot burn an iso disk, so i reset it again, took about 20 minutes, now the drive is just simply not visible in explorer), none of them worked,
the laptop is samsung series 3, this one, NP355V5C - OVERVIEW | SAMSUNG
it used to have this problem (dvd not detected, or push button not responding) before, but usually solves on its own after an reboot, unlike this time which is completely screwed up and i am at my wits end,
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Sep 9, 2013
No USB device seems to be getting detected on my machine when I plug in a flash drive or an external hdd I get the distinctive sound from my speakers that an USB device is plugged in but nothing is showing up in "My Computer". I went through the event logs and found that Windows is failing to load the USB device (check image in attachment logs.jpeg). Recently I installed iTunes, so I though it might be causing this problem but I uninstalled it even then the problem persists. I don't want to format my machine just because of this small problem. Is this a driver conflict ? How do I find out why windows is all of a sudden failing to load the USB devices ? I have uploaded a copy of the saved logs detailing this failure(logs.zip).
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Oct 19, 2013
Ok, after playing around a bit with the new 8.1 some hardware issues come into my way: My Soundblaster X-FI didn't work anymore, no new driver provided by Creative Labs - replaced by working sound onboard.
But now my Sony Cybershot DSC-W70 camera isn't detected anymore, no drive letter is assigned and since I have no cardreader I can't access the pics. Troubleshooting says the problem can not be fixed. Sony doesn't provide particular drivers for it and reinstalling the Intel ICH9 driver didn't work. Under Windows 8 it worked like a charm, 8.1 seems not to like much of my hardware.
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May 30, 2012
I know my dvd drive was working a few weeks ago cause i used it to load up shogun 2 total war. My bios recognizes my driver but i dont see it any were in my device manager. BTW i was running windows 7 and had no issues with my dvd driver.
Update i click show hidden devices and i see my dvd but I can't find it anywhere when I look in my computer and when I put a disk in it doesn't boot up the cd or anything. I also asked it to check for updates but it says i have the latest updates for the drive and the device is working properly.
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Jan 17, 2013
When I look the control panel the CD/DVD does not appears, but in the setup you can see that the DVD is working. Before I had win 7 and it work well.
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Jun 12, 2014
i have just installed windows 8.1 64Bit on my pc which was originally running windows 7 64Bit I have 2 internal backup drives in addition to my normal boot drive Both these drives have data and worked perfect in Windows 7 but in Windows 8.1 only one shows up When i try to access the one I can see it says drive not accessible Access denied It also shows used space and free space as zero bytes When i know it is at least half full.
Its a 2 terabyte drive same as i the one i cannot see at all I have uninstalled both drives reinstalled them updated every driver possible I have windows 8.1 on a slide in drive as windows 7 When i slide Windows 7 back into the same machine both drives show up no problem.
Its an ASUS M4A785TD-V EVO Motherboard I am begining to wonder would a Bios update if there still is one available
As this motherboard is getting on a bit now.
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Mar 2, 2014
Since upgrading my HP DV6T7000-CTO from Windows 7 to Win 8 and now 8.1I have had an intermittent issue where the my wifi/bluetooth adapter is detected, until a restart, and then afterwards, is no longer detected. I have a Intel centrino wireless N 2230 which is both wifi and bluetooth. I cannot connect to wifi, nor is the bluetooth detected. Additionally, the wifi-radio button on my laptop, will not turn on (red is off, white is on). Sometimes I can temporarily fix the issue by shutting down,disconnecting the adapter from my laptop, reseating it, and then rebooting. This does not always work though.
I have tried the latest drivers from Intel as well as tried removing those and just installing whatever Windows update thinks is best. I have also updated the Bios to the latest, but to no avail. I have even replaced the adapter with a new adapter but the same model and that did not fix the issue either.
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Nov 10, 2013
I get a black screen after the loading screen when I boot up my computer. To fix this problem, I decided to do a dirty install, but I stumbled upon a problem. I have 2 Crucial 64GB SSDs that I put together as one, making my C: Disk, but I didn't see it in the Volume List. I only see what was Drive D:, my 1TB Seagate HDD, which, supposedly, took my SSDs' place as Drive C:.
I've unplugged the SSDs and booted up with only one plugged in, and made the Primary Boot Device "Removable Disk", but when I boot up, I get an error message saying "BOOTMGR is missing". The same thing happened when I did the same with the other SSD. It can be deduced that both of the SSDs have to work together as a whole to function.
Then, I unplugged the 1TB HDD and tried again. When I did a chkdsk for Drive C:, I got a message saying, "The system cannot find the drive specified". From this, it is obvious that the 2 SSDs (which are the actual C: Drives) aren't being detected by my computer, but the 1TB (Drive D: ) is being detected.
After uncovering this problem, I think this may be the fault that is giving me the black screen after boot.
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Jan 15, 2013
I have a Lite-On iHAS124-04 DVD drive that is not detected by windows 8.
The same system also has winXP and win7, which detect the drive.
The interesting part is the drive was used to install windows 8.
Why is windows 8 not detecting the drive?
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Nov 3, 2013
I have an Asus x202e with I3, Windows 8 64 Bits. The defect is that the battery does not detect. Here's what I did: I disconnected the battery, I pressed the power button 30 seconds and not fixed. I reset BIOS F2, F9 and F10 and again not repaired. I uninstalled the Microsoft ACPI method battery and nothing. Do you think that a BIOS update will fix the fault? Mention that no longer turn on the battery.
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Apr 5, 2014
I have two Windows 8 compatible USB data cards. How can I use both of them together.
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Feb 9, 2014
After 5 years of use, my college laptop (Windows Vista) finally gave up on me a couple of months ago. Each time at start up, it would automatically go to the blue screen of death and never get past that point. I wound up getting a new laptop operating on windows 8, and now I'm attempting to recover some of my files from the old hard drive. After a little reading, I discovered that you can pull the old drive, connect it to another computer via a USB cable, and attempt to recover the data on the drive. So I ran down to the local best buy and picked up an Apricorn SATA Wire. Here's the problem. Every time I hook the hard drive up to the computer via the USB wire, my computer instantly goes to a blue screen and goes into a cycle of restarting itself over and over. Does this mean that my old hard drive is just too far gone to recover, or is there another method that I can try?
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Feb 23, 2014
I have a 1TB backup HDD that is dynamic and full. I have a new HDD that I wish to use to extend this drive.
Is there a way to do this?
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Jan 19, 2014
I have a client running Windows 8.1. The original problem was that he could not install an HP 6700 printer, the installer package failed every time. I got the same error; I attempted to update all his drivers and noticed that all the installers failed. I then attempted to install it manually and I get a failure: Windows found drivers software for your device but encountered an error while attempting to install it. The data is invalid. I receive the same error if I try to install any driver the same way. Laptop is an Acer Aspire One running 8.1, there were no recovery discs made and all recovery options fail. Not sure where to go with this.
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Mar 13, 2013
This morning, my laptop wouldn't boot and I got a message saying I needed to use the recovery disk to fix the problem. A little investigating using the command prompt from that disk revealed my system and data partitions had no drive letter assigned to them. A little work with Diskpart fixed that but left me wondering what would have caused them to disappear.
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Jul 26, 2014
I used four drives in my hard-disk. I needed to extend volume for my C drive. So using the Disk management utility I was trying to shrink the drive F (as it was very next to C, as in Disk management). But something happen accidental here. I found that two of my drives E & F went missing after the operation. Also my laptop suddenly restarted (after perform a checking task). I am not sure how this happened and looking for a way to recover the lost partitions as they are seen still exist, including the data.
I was only trying to shrink around 283 mb of volume from a drive with 138 gb, as an experiment basis, to see it work. On that process the drives were lost and those are not shown into my windows now. Using a software EaseUS Partition Master, I could still see the drives still exist as they contain the data as used spaces, and also show the unallocated space of 283 mb but I am not finding a way how could I recover my partition without affecting the data.
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Dec 6, 2013
I am trying to get my external hard drives setup from a freshly rebooted installed computer. I recently placed an external hard drive with all my back up files on my computer, but this drive is not going to be my main drive. I have two others I will be using as a main hdd and a backup drive that are brand new.
So, the question is, if I were to use a utility like the Windows 8.1 disk management feature to either delete the drive letter or even change it to another one, will that mess up the external hard drive or even lose data? Because until I transfer my files to my backup disk I am afraid of losing my only copy of my files.
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Aug 25, 2014
I want to partition my C Drive to install Ubuntu 14.04 so I can dual-boot with Windows 8.1. When I tried to shrink the volume it wouldn't let me got higher than 4GB even though its a 500GB drive and I have over 259GB free. From looking at it the drive seems to have a few recovery partitions one being just under 24GB. Does the number of drive partitions factor into the amount of space I can give to a partition. Also if the recovery partitions are factoring into this can I move them to another drive or just outright delete them.
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Jul 18, 2013
I would just like to check and make sure I have this correct. I have the following HD and feel they should be setup like this.
Disk 0
C: - Primary
D: - Extended
Disk 1
F: - Extended
Now this is where I am not sure
Disk 2 - USB Portable Drive
G: - ? (I would think also Extended but I see it came out the box as a Primary)
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Jul 16, 2014
I a bit stuck at the minute I have just put in a second ssd for just games and storage.in windows disk manager which type of partition do I set it to mbr or gpt this is not for my windows that's on another ssd ...
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Dec 25, 2013
My PC is Windows 8.1 x64.
I have a 2TB external (USB) drive and have created four partitions of equal size using Windows Disk Management, the first three are three are Primary (Healthy) but the fourth is "Logical"
How do I change it to a Std Partition, Basis or Primary.
Or does it matter, the Partition will be used for backup of files, so is it okay to use it as Logical?
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May 12, 2013
My Windows partition has a corrupted file system. I've tried fixing it, so far nothing works. At this point I'd just like to format it so that I can shrink it and use some of it's space on another partition. I have to format it before I can shrink it because it is corrupted. Would formatting it like this affect the Windows product key? I don't want to mess that up, in case I buy recovery media in order to re-install Windows.
I don't think it's important, but I am using a Toshiba Satellite S855 trying to fix Windows 8.
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May 16, 2013
My C: is a SSD Id like to have back as one disc, one partition..
The 101 mb 'unallocated' It was previously listed as " reserved system protected drive" I removed and formatted its 101 mb...back to empty, unallocated, can I lose that partition??
It shows up under disc management as a part of c...but really has no drive letter at all it just shows as C:
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Aug 29, 2014
not able to delete partition (21.85GB) and extend it to partition C
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Jan 20, 2014
I need to create a partition on my PC and I've followed tutorials but I always run into the same problem: Right clicking a volume in disk management only gives me a "help" option. I've connected external storage and it gives me the menu shown in the tutorials/how-tos.
Is there something I'm missing? I've followed all the steps to the letter, save for the ones that are not possible on my PC (shrink volume/etc)
Additional info: PC is an Acer Aspire V3-551 laptop
The HD was replaced a few months ago and the original OS updated to 8.1 from 8
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Jul 1, 2014
When I go to Computer Management my main (OS) drive shows as "Disk 1" and my 2nd internal data drive shows as "Disk 0". Should I switch the SATA cables so that the main drive will show as "Disk 0 and the 2nd internal drive as "Disk 1"?
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Jan 26, 2014
I just bought a new laptop - an ASUS N550JV - with a single 1TB hard drive. I specifically sought a 1TB hard drive because I intend to store a lot of photos on the laptop and already have over 600GB of photo data to store.
When I got the laptop the first thing I did was to go through the windows update process to get everything up to date, then I upgraded to Windows 8.1 (the laptop came with Windows 8), then I ran the windows update again until everything was up to date.
It was only then that I opened up file explorer with the intention of setting up a basic folder structure for the files I planned to transfer to the laptop. I was dissapointed, at that point, to discover that instead of a single 1TB C: drive, I saw a 370+ GB C: drive and a 530GB + D drive. I confirmed with system information that there is indead just a single drive, and that it thus came partitioned into 2 primary volumes (which, btw, still don't add up to 1TB BTW!). This setup really doesn't work for me, because the "larger" volume is still too small for all my photos, and it would be illogical and inconvenient to have to split up the photos so that some were on the C drive and some on the D drive.
Could I somehow merge the two partitions back into one primary drive, or at least re-size them so that the D drive had at least, say, 750GB, and shrink the C drive accordingly. He pointed me to the Disk Management utility and directed me to delete the (still empty) D drive, which would make that storage space unallocated, then extend the C drive to use that unalocated space. I was able to delete the D drive, and confirmed that there was now 530+ GB of unallocated space. However, when I click on the C drive the option to extend is greyed out.
I did a bit of Googling at this point and discovered that you can can only extend to contiguous unallocated space, and the unallocated space was NOT contiguous - there is a 350MB "Recovery Partition" between the C and D (or unallocated) spaces. In fact, there were multiple recovery and other partitions. (From left to right: 100MB "EFI System Partition", 900MB "Recovery Partition", 370+GB "Primary" C Drive with Boot etc, 350MB "Recovery Partition", 530+GB "Primary" D drive, and 20+GB "Recovery Partition").
Of course I would be too scared to delete the recovery partition, but there's no option to do so anyway ...
I asked the family member again and he suggested creating a USB Recovery Drive and, in the process, wipe the recovery partition. So used the windows utility to create a recovery drive, and sure enough, at the end it asked if I wanted to delete the recovery partition and I said yes. The good news is that this removed the 20GB partition, and I was able to extend the D drive to use that newly unallocated space. The bad news is that the 350MB recovery partition still lies between the C and D drives, preventing me from merging the two.
Again through Googling I found that there are tools I could use to force delete the recovery partition, but I'm afraid to do so and kill my computer or recovery options all together. I also heard that this 350MB recovery partition was created when I upgraded to 8.1, and that rolling back to my factory setting won't remove the partition?
So the question is, what can I do? Is there an easy way to "move" the recovery partition to the end of the drive without breaking any functionality that it might have? What would happen to my computer if this recovery partition were to "break" or get removed? Is it best that I just "live with it" the way it is despite the inconvenience?
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