prohibited sign

  1. MbryMbry

    Prohibited sign booting USB installer BigSur 11.4 (Asus TUF Gaming Z490 Plus / OC 0.7)

    Hi, I've been trying to get to the Disk Utility in order to install macOS for my very first Hackintosh. After dozens of EFI modifications, I was not able to get my mouse and keyboard working once arrived at the Recovery Mode. By digging more, I found that the problem was the USB ports...
  2. panton

    Can’t boot after migrating to a new computer

    Dear forum, I had Hackintosh (Gigabyte GA H87N mobo, i7 4700) with Windows10 and Yosemite running on two different SSDs. After moving these two SSDs to a newly bought PC (ASRock Z370 mobo, i7 8700k) Windows 10 runs smoothly— but Yosemite is making trouble. When booting and pressing F11 I can...
  3. jhsiders

    Prohibited Sign After Trying to Update to 10.15.7

    I downloaded the combo updated to go from 10.15.5 to 10.15.7, and my Mac would boot right back to 10.15.5. When I tried booting to the Install [drive] - data loader, I got a prohibited sign. I read that changing Clover Configurator to BootLastVolume would allow it to update, but not there’s a...
  4. simondixgaard

    Activated Firewall + Filevault, now Prohibited Sign at boot

    Hi, I recently, by mistake, activated Firewall and Filevault on my hackintosh. It asked me to reboot, and when it did a prohibited sign showed up. Nothing I can do. I'm not a hackintosh genious in any way, and the fact that I actually have had a very well working hackingtosh (mostly video...
  5. FocalBassist

    Prohibited Sign - Won't Boot!

    My OS Catalina Hackintosh has been working flawlessly since I built it back in April. Processor: i9 9900K Motherboard: Z390 Designare Memory: 64GB Corsair Vengeance LPX 3200Mhz Graphics: Sapphire Radeon Vega 64 8GB Nitro+ Storage: Sabrent Rocket 2TB M.2 2280 NVME However, I have come to it...
  6. fercho3138

    Sudden Couldn't allocate runtime area

    Hi! So I've successfully built my rig and installed Mac os Gigabyte Aorus Z390 Pro Wifi Intel Core i7 9700k Ballistix Sport 32gb Samsung evo 500gb nv Sapphire Radeon RX 580 Pulse Corsair h60 The thing is that I got it running perfectly, even performed some heavy video renderings with no...
  7. glowinthedark137

    Crossed-out/Prohibited sign while installing Catalina

    Getting another prohibited sign error while trying to install Catalina. Tried switching to all usb 2.0/ even 3.0 ports with no success. I'm trying to dualboot hackintosh on the same hard drive with windows 10 already installed Here's my specs: Motherboard: Asus H81m-k CPU: i5-4460 GPU: rx-570 8...
  8. exuded

    Asus Z170 RX 580 road from Mojave clean install -> Catalina upgrade

    Hey guys, I hope you can help me out here. I installed macOS Mojave following the mojave guide and used this post which used a very similar Mainboard like me. My build: - Asus Z170 Pro Gaming - Intel i5 6600K - Sapphire Radeon RX 580 8GB - Intel 660p 1 TB M.2 SSD The Problem: I booted from a...
  9. Wildcatsgalore

    Resized screen on boot / fringing effects / prohibited logo

    Hi all, powered up my build this morning, and was greeted with the strange display as shown in the attachment, with weird fringing effects and a resized Filevault Preboot. Once the password is entered, I consistently get the prohibited logo. I have tried using both the onboard graphics and EVGA...
  10. EricK9900

    [SOLVED] New Mojave Build Stuck on Prohibited Sign

    Been on this for a week... scoured many similar threads in the forum and tried a bunch of things but nothing seems to work. Here is my exact build (every single component was picked from the Buyer's Guide section. I understand that there is no guarantee that my combination will work 100%)...
  11. rishi44

    [SOLVED] Getting Prohibited Sign when booting into Clover Recovery HD

    Hello guys, I am trying to restore my machine from a time machine backup, because I do not have FakeSMC.kext installed on the EFI partition of my SSD drive, I created a USB bootable high Sierra installer so I could use the recovery partition on it. But, for some reason, I am always getting the...
  12. Killmonster

    [Solved] Gigabyte h370 hd3 Installation prohibited sign

    My latest build h370 hd3 i3 8100 Bios settings Load Optimized Defaults VT-d setting - Disabled Secure Boot Mode - Disabled internal Serial and Parallel port - Disabled Network stack - Disabled wake-on-lan - Disabled XHCI Handoff - Enabled decode over 4G - Disabled DVMT pre-alloc - 64MB Set USB...
  13. D4RKW4YN3

    [Solved] High Sierra can't boot from HDD but only from USB

    Hello everyone, this is my first hackintosh and I really struggled with it. After some time I finally reached the boot and installation with USB (unibeast). Now I did what the guide said and I used Multibeast to set network and audio drivers, uefi boot and nothing else. When I restart I choose...
  14. KireinaHoro

    [solved] Various problems preventing boot on Thinkpad T470p

    Hi, This is my first post here, so don't hesitate to point out if I missed anything, thanks. I believe that I'm having the following problems at the same time: - garbled graphics after clover screen (happens most of the time, yet occasionally I get correct pictures) - prohibited sign after...
  15. andrewvorobey

    prohibited sign in instalation

    I'm trying to install Sierra on my PC. I've successfully made USB boot with UniBeast. I'm trying to install the OS with flags: -f cpus=1 npci=0x3000 darkwake=0 GraphicsEnabler=Yes IGPEnabler=No -v But I get prohibited with no errors. (may be there are error, but i can't see them, because text...
  16. Quakee

    [Solved] Problems with direct upgrade with mac os High Sierra (prohibited sign)

    Hi so I wanted to upgrade my current mac os sierra to high sierra and I am on clover UEFI bootloader. I followed the instructions here to update clover to the latest version (r4220), copy apfs.efi into the drivers64 in EFI\clover and copy fake smc kext into the kexts\other folder. When I ran the...
  17. Sevolfo

    error loading kernel cache (0x1b)

    Guys please, please help me: I have installed Mac OS X Sierra many months ago, everything was working fine, but now suddenly I get the “prohibited/stop sign” after the boot of Mac OS Sierra. Is this the error: OsxAptioFix2Drv: Starting ovverrides for system\Library\CoreServices\boot.efi Using...
  18. dcpro11

    (HELP) Hackintosh for Music Production / El Capitan

    Hi guys, I built an Hackintosh with the following items: - MSI Z270 Gaming Pro Carbon - Intel i7-6700K - Corsair H60 Water Cooler - 16GB RAM Crucial Ballistix Sport - 250GB SSD Samsung Evo 850 - Corsair CS550M 550W No Graphics Card for now! I will buy one later! I followed all the guides...
  19. nervirasme

    Randomly getting prohibited sign while booting Sierra

    Hi guys, ever since I installed Sierra on my primary hackintosh (list of components is in signature below) I'm having a certain problem - sometimes I boot just fine, and sometimes I get prohibited sign and I have to manually restart until it boots normally again. It really happens randomly in...
  20. DaJoker

    Prohibited sign during install

    Hello everyone, am kinda new to all this Hackintosh thing, and id love to be part of this community. as the title states i start the clover install with the boot arges> dart=0 nv_disable=1 npci=0x2000 cpus=1 the install bar works until around 70% then a Prohibited Sign appears and after few min...
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