Hardware Drivers :: UEFI / EFI Fat32 Access In Windows 8
Sep 13, 2013
I regularly work with EFI partitions (Fat32 formatted as per requirements) on my usb drives (for loading Ubuntu, Windows 8 installs, and Win7 installs), and I cannot seem to access any of these drives in Windows 8.
No matter how many times I format the things to Fat32 I can not even access them at all. I get the error message "You don't currently have permission to access this folder, Click Continue to permanently get access to this folder" <Clicks Continue> "You have been denied access to this folder. To gain access to this folder you will need to use the security tab" <Right-Click, Properties, search for non-existent security tab>.
I understand that the security tab does not exist on Fat32 partitions. But how do we access these drives? The only other way I have found is through elevated command prompt run as administrator. (Which is dumb when you think about it because any virus coded for DOS can essentially access your EFI partition essential to your computer's booting into Windows, but you cannot access it to fix it?) Some days I just wonder what people were thinking when they write software. ~Sigh~
I commonly extract ISO images straight onto Fat32 USB when they contain the /efi/boot structure, but I cannot do this without explorer access (Elevated explorer doesn't work either). MS Dos only sometimes works because of the naming rules associated with it and the xcopy command, etc.
To re-create my disaster, format any USB drive as Fat32 using Windows 8 (or plug one in which is already formatted as such) and try to access it. Then try right clicking the drive and look for said 'security' tab.
TO SUM UP:
I cannot read/write/access Fat32 partitions. It is a re-creatable issue.
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Sep 15, 2014
I have this external hard disk of 500Gb of Verbatim. Previously it was of NTFS format. Then I had converted it into Fat32 because I wanted to write stuff on it from MAC. I transferred movies, pictures, videos, songs, etc in it.
Now, I use Windows 8.1. I connect this hard disk. I hear the sound of it getting connected. But then I can't access the hard disk. As in my laptop doesn't read the hard disk. I read a few posts regarding converting a hard disk from FAT32 to NTFS wiithout losing the files. But I was not sure whether I have the same problem.
I want to transfer all the files in my hard disk to my laptop.
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Jan 3, 2014
It is a 64 GB Toshiba USB drive (TNU). Problem is that every time I try to format to NTFS the normal way with Windows 7 or Windows 8 I get the message: Windows was unable to complete the format.
I tried to format it using the specific software from the drive manufacturer, TNA.
A friend managed to format it to FAT32, but the next time I tried to access the drive Windows showed a message saying that I needed to format the drive to use it. Then there appeared only the exFAT option.
I also tried some partition software, like AOMEI Partition Assistant Standard Edition, and it could format to both FAT32 and NTFS, but when I removed and put the USB drive back Windows again warned me about the need to format and again I had only the exFAT option left.
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Jul 10, 2013
I have a windows 8 64 bit lenovo g 580 20157 ...
Unable to access bios or uefi, when I try to access uefi pc just restarts. Ihave disabled quick start up in windows ...
Also when i boot up pc and able to get menu go to bios or boot option just boots into windows ...
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Dec 14, 2013
Ok so i have 2 months lenovo ideapad z580 laptop..i am unable to access UEFI BIOS menu and boot menu anymore these were the steps i tried with my laptop.
1) I have windows 8.1 tried going to pc settings and selected uefi settings on restart But the problem still persist the laptop is just doing normal windows 8 boot
2) Tried pressing/hitting F1,F2,F12,DEL keys
3) I have also used lenovo one key recovery button there it showed "bios setup" when i selected it and hit enter it is just doing normal windows 8 boot still i can't access uefi bios
4) Tried updating BIOS for the laptop but unfortunately there was no bios update for this model
5) Tried resetting Laptop by removing battery and ac adapter and pressing and holding power button for 30 seconds but still no use i can't access BIOS yet
6) I tried removing the internal hard drive Out of the laptop and this time one starnage thing happened " before with internal hard drive i used to get lenovo splash screen when turning ON but after removing hard drive and when i try to access bios i can't see the lenovo splash screen at all" still i can't access BIOS!!!
7) I even have tried holding down Shift key, letter B when starting up the laptop but still didn't work seems like windows 8.1 makes changes to BIOS?
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Aug 10, 2014
I recently purchased an 64GB SDXC card and formatted it to Fat32. Sometimes it works, but most of the time I am unable to copy files to it. Windows 8 keeps saying problem with drive or something that pops up in top right corner. Anything I can do about this? The SDXC card is Pixtor SanDisk.
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Nov 3, 2013
I'm using Windows 8.1 now, but about a year ago, while I was still on Win7, I bought a 3TB Seagate internal hard drive. My motherboard doesn't have UEFI, so I used the DiskWizard utiiltiy from Seagate's website to make the drive look like two drives, one 2TB, the other about 800GB. Now I have my boot partition and several data partitions on the drive, and access to all 3TB of space. Works great on both Win7 and Windows 8.
I just saw an ad for a good deal on a Toshiba 3TB internal drive, but I can't find any indication that Toshiba has software that does the same thing for its drives as DiskWizard does for Seagate drives.
Is there such a utility, either from Toshiba or a third party?
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Oct 29, 2013
How to convert an old FAT32 NAS drive to NTFS without losing the data on it?
convert z: /fs:ntfs gives error message cannot convert network drive.
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May 31, 2013
I recently installed windows 8 on my MacBookPro with UEFI support, but I can't enable audio. I know that apple use BIOS emulation for windows and the assign different Hardware ID's for devices.
With BIOS emulation ID is:
HDAUDIOFUNC_01&VEN_1013&DEV_4206&SUBSYS_106B5300&REV_1003
Without emulation ID is:
PCIVEN_8086&DEV_1E20&SUBSYS_72708086&REV_04.
I tried changing inf file and it detected the required audio card driver, but it shows that device cannot start. It's Cirrus Audio CS4206B (AB83) sound card, but without emulation it shows it as intel audio card. It would be easier to get back to bootcamp, but I really want to make this work.
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Jun 3, 2014
Had drive problems with PC so got new SSD drives and a Hybrid drive.All new drives so did tortuous route install win7 - upgrade to win 8.0 all worked then started acting up. My tech support worked on it for 2 days and gave up said I should backup and do a clean install from start. So I did.
Not yet put any backup files on so only operating system and devices (printer, wireless keyboard/mouse, wireless headset and 3webcams ( One Pluscom and two PCline ) checked device manager and found cameras with yellow exclamation mark and checked properties and saw this webcam.JPG . Download, install and do a reboot and see what happens.
[URL]
I am obviously logged in as admin as I am the only user who Can use PC and checked permissions which are OK all users having full access.
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Jan 14, 2014
how to change my BIOS into UEFI. I tried to flash a UEFI BIOS file attached on Acer website but it wont start flashing. The latest version of UEFI installer is not responding when I want to flash it, the older version said I need to have the same type of BIOS installed. how to install UEFI on my system?
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Apr 12, 2014
Is it necessary to disable CMS in the bios to fully utilize a UEFI install?
I'm getting conflicting messages from what I am reading, probably.
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Jul 5, 2014
I can't enter my BIOS/UEFI after activating "MSI Fast Boot" in the BIOS/UEFI.
I read somewhere about "GO2BIOS",but my installation disk didn't came with that software.
MB: H81M-E34 (MSI Global H81M-E34)
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Jan 8, 2014
I've install my new laptop (Asus N550JV), which armed with Qualcomm Artheros AR3012 Bluetooth card.The OS is Windows 8.1 (all updates installed).
At first, BT was sort of working. Sort of, because I was able to connect my BT mouse, but on a random basis, the mouse got connected and disconnected.
So... I've tried to do the logical move, and went to Asus` website in order to update the BT drivers. And so I did.
From that point not only that I can't connect my BT mouse but also I'm unable even to access BT settings. When I select Bluetooth on the settings nothing happens. It just gets stuck.
In the device manager BT seems to be installed and running just fine, no error coded whatsoever.
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Nov 6, 2013
I have two programs on my hard drive. They both require access to a COM port. When I attempt to access either one it works fine, but I need to have both of them running at the same time---thus I need an additional COM port. When I setup either program, the available port appears (COM 3). It does not allow the entry of any other port or call up an additional one---with all the COM's available, it would seem reasonable to be able to use more than one port at the time! I am using a Dell Pentium Laptop (1545) with Windows 8.1 PRO. The computer has 3G of memory.
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Mar 28, 2013
I was using a router to access the web with my smart phone. I no longer use a smartphone and have gone back to a home phone.
The router is still hooked up and I was wondering, is the computer utilizing it in any way? Should I leave it hooked up?
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Apr 23, 2014
I'm trying to use my 3tb external hard drive with my new Toshiba laptop running Windows 8.1. At first the computer recognised the drive, but when I tried to open the files I wanted, (masses of JPEG and RAW photo-files) they did not appear. There were four files listed..all of which were used to run the drive itself...no folders visible at all.
I figured there might be a problem with access so went to a number of possibilities and altered all manner of permissions and sharing options to what I thought would work. The upshot is that now the drive comes up as 'Location Unavailable'...access denied.
Previously I had used the drive on an ancient Vista machine, and still having this laptop, checked that the external drive was working,(it still is, with all files and folders still visible). I also plugged in my Sandisk Cruzer flashdrive and that opened no problems. right click on the drive>properties>sharing>advanced sharing>permissions>checked that 'everyone' was selected then allowed full control, change, read and then OK'd...still no difference.
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Jan 14, 2014
I have an iomega portable usb drive. I can plug into any of my windows 7 machines and access the files and store data on it. when I put into my win 8 machine it shows in devices and printers and in my computer shows as removable disk but you cannot open it up.
I have went into device manager and tried to update the usb driver installed but no use at all.
really strange that it shows in devices and printers but I cannot get the files.
the thing is I need to install and transfer some backups onto my win 8 machine so I need it to work desperately.
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Oct 25, 2013
Last week my laptop had trouble starting up, it had a problem with atidvag.dll if I recall. I wasn't sure what to do but I got lucky and after a few attempts in managed to boot. Now however it doesn't even get to the point where it could tell me what is wrong, no Windows logo. Just straight in black screen with a cursor in the top left. F2 will take me to BIOS (if I am quick), but no other keys work. Booted onto installation media to try startup repair, no joy, rollback also no joy, tried using command line following the instructions here to force a boot into safe mode but no joy.
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Aug 14, 2013
I installed Windows 8.1 build 9471 into my desktop. I use a TP Link TL-WN781ND wireless adapter to access my home network and the internet. I tried copying the drivers from Windows/System32/Drivres and installing them manually, I also downloaded the exe from the site but they still wouldnt connect. It would just say no connections found.
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May 16, 2013
I bought a Toshiba laptop that came with pre-installed Windows 8. I went into the "Bios" and switched from UEFI to CSM, Now my laptop just doesn't work. I am on a public computer posting this because mine will just not boot at all. It won't even show the boot logo, and I cannot get back into the Bios to switch it back to UEFI. I am not sure what information I could add on to here to be more clear other than I screwed up bad. The laptop didn't come with a disk, and I tried to hold 0 while powering up the laptop hoping that it would reset to factory settings, but no luck there either.
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Sep 21, 2013
I have very little experience with Windows 8 until now. I am having an issue trying to run System Refresh or System Restore from the System Recovery Environment booted from the Windows disc. When I try to run it from the disc I already System Refresh says that the drive is locked. I tried System Restore and it said no OS's were found. I went into the CMD prompt and went to c: and can see the drive just fine.
Steps tried: running fixboot, fixmbr, rebuildbcd commands from CMDrunning dskchk /f (which forced a dismount)
I then read something about a non UEFI bootable disk couldn't access a GPT partition, which I think is the case here. So then I tried oscdimg to make my iso UEFI bootable (twice) and the UEFI Boot Manager still only shows 'Windows Boot Manager' at the boot menu. I even tried downloading an iso that was already UEFI incase I did it wrong and it still doesn't see it.
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Jan 27, 2013
Just a quick question about UEFI installation. I've got the Windows 8 Pro DVD but I lack USB Flash Drive 4Gb, is it possible to install Windows 8 with UEFI support with the DVD support or as written in the tutorial the USB Flash Drive is mandatory?
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Feb 15, 2014
I am using Windows 8.1, now I have a problem because i wanted do dual boot it with ubuntu and it didnt work on UEFI mode, but then when I installed ubuntu windows 8 wouldn't start... then I formated it with a downloaded windows 8 torrent... but now I can't start it on UEFI mode
It says something "media not found" or "failed" ... so if I want to start it I have to change to legacy mode......
Is there anyway to get it back to start it with UEFI? It ain't activated yet.. Windows 8.1 pro... is there any activatior or something too???
Or if I downgrade it to Windows 7? would it be any more the UEFI problem?
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Oct 12, 2014
I have windows 7 already installed.my hard disk have 3 partitions and there are data in them.so,if i want to install windows 8.1 with uefi do I need to format all my partitions or only the windows 7 installed partition?
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Aug 31, 2013
I would like to know how to install Windows 8 from a hard drive partition, so that is much faster than installing from a USB ... I've seen guides on how to do, how bad MBR, and I want to know how install W8 from a partition GPT / UEFI.
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Jul 7, 2013
So, I am trying to install Windows 8 with UEFI support.
Which means file system can only be fat32 because UEFI doesnt support NTFS. Now my install.wim file is over 4GB in size, so I am unable to copy it to the usb drive because of fat32 limitations.
How would you go about this ?
I tried creating 2 partitions on my usb. One fat32 - which contains all boot data and second partition is NTFS which has only my install.wim file.
Now I am able to boot, but it doesnt detect my install.wim obviously because it is in another partition. What command should I use to pull it from another directory ? I am able to open CMD on the set up screen.
OR any other way to accomplish this ? How would you go about this ?
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Apr 9, 2014
I have T430s my laptop got licence in UEFI of windows 8.
1. How can I download legaly windows 8 and reinstall windows?
2. Can I download windows 8.1 install without taping serial and activate afterwards?
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Nov 18, 2013
Is it possible to install Windows 8.1 as Legacy with MBR? Or only as UEFI with GPT? I'm kind of confused with all this UEFI business, I always used MBR in my Windows installations. Also, Truecrypt does not support UEFI, so if installing Windows 8.1 I should do it as legacy.
Also, how can I control during the install process if I want to set my system installation as UEFI or Legacy?
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Jun 27, 2014
I got a (at the time new) MSi laptop several months back with just a regular Windows 8 Core x64 on it and a UEFI boot system (or whatever is the name for "BIOSs"). At some point I had problems with the settings - I couldn't open any of my computer's settings - and I researched long and hard to no avail.
So I installed Windows 7 32-bit (the only disk I had). Now, I'm trying to upgrade to Windows 8.1 Pro. I noticed that after the installation of 8.1 Pro my system was still running in 32-bit, so I made a bootable USB stick with the retail version of Windows 8 Core with no key just to get the system back to x64. It worked just fine. I cannot, however, boot in UEFI mode. I believe the partition got wiped somewhere in the Windows 7 installation.
Whenever I enter UEFI by pressing the DEL button (I cannot see the UEFI firmware settings tile under the Troubleshoot option) I see the boot mode is LEGACY and when I change it to UEFI, save and reset, it doesn't boot, giving me a "No media found" error. I don't care about my settings/files as long as I get UEFI back with Windows 8.1 Pro running. My next attempt would be to try and install 8.1 Pro from USB stick, wipe all the partitions and hope the installer will create new ones. The reason this would work when it didn't before is because I had the OS running in x86 not x64 (which UEFI doesn't support). So maybe now that the system is back to x64 the Windows installation will restore the UEFI back to its original state.
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Jan 10, 2014
Windows 8.1: HP Pavilion 2475ea Desktop PC.
I have Secure Boot turned off. I have Legacy Boot turned on, but do not think that is needed.
This link gives me instructions to boot from CD but they seem not to make sense from No 2... [URL] .....
In that at 5-6-7 it seems to require me to select the CD then boot to Windows from HDD then restart and do the same again, but this time select CD again, or something??
I expected to set the device, then restart the computer and it would boot from the device, not restart Windows as described. I was able to boot from a WinPE 4b CD.
I then decided to try changing boot order in the UEFI BIOS. From then on the HP (F9) described menu showed 'Windows Boot Menu' only under UEFI Devices. I could only boot from CD after putting the order back to 'Windows Boot menu' at the top of the order list; after which, as long as the CD was in the drive the (F9) list showed the CD drive as selectable to boot from.
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