IMac boot problems

Hi,
I have a iMac(iMac9,1) here which experiences some boot problems. If you try to boot "normally" it just sais "No bootable device". Keycode's don't work so I imagened that the firmware password was active. And indeed; holding the option key gets me to a password an after that a screen where I can choose where to boot from.
If I start from the harddisk, most of the time Mac OS X starts. But it takes a very long time and the performance after starting isn't that great either. I repaired the harddisk using the disk utility on the Mac OS X DVD and tried to delete the firmware password(so I could try to reset the NVRAM at startup). But it just doesn't reset, althought it should(I even couldn't change the password while starting from the DVD). That seemed very odd.
By the way; using the startup disk utility gets me nowhere either.
Also if I reinstalled Mac OS X, it would do fine until the very end, where I got an error. The installation works but with the same boot problems.
Since the "no bootable device"-problem seems to be a Windows problem, I tried to recreate a windows partition so I could after that delete it again. But opening the bootcamp assistent just gives me an error saying that I need to update my ROM-software, which I can't update because it has the newest version already.
Is there any way to just reset the EFI?(there is no firmware restoration disk for this mac)
I hope someone can help!
Regards,
Dennis

"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.
If that doesn't help Reinstall the OS.

Similar Messages

Mid 2006 iMac Boot Problem (Since latest firmware update)

I have a Mid 2006 17" iMac. Ever since the latest firmware update in early December, about every other startup I've been having boot problems. After the white screen with the Apple Logo and the spinning wheel it goes to a blue screen like normal, but instead of the 'Loading Mac OS X' white window popping up it stays blue and the spinning loading wheel starts. I've left it loading for quite a while before and nothing changes. I have to do a force shut off by holding the power button. and then I start it up and it will boot normally.
Any help would be appreciated.
Thanks!

Actually, I think it'san early 2006.

IMac Boot Problem

I dont know what is going on with my iMac. When it tries to start up, it just goes to the white screen before you get the apple symbol and gives the startup sound, but that is it. When I try to boot from the Mac OSX boot cd with either C or D at startup, it doesnt do anything. When I try to boot into safe mode (Option-S) it doesnt do anything. I read up on the support site here. I did that thing where you hold in the power button when you plug in the mac and then start it. I did this for the first time yesterday trying to fix it and I heard a sound i've never heard before - the fan. I actually didnt know the computer had a fan until yesterday.. Could it be that maybe it overheated and is now pooched? I have warranty left on this but to get it to an apple repair place I would have to drive for 5 hours. Any help would be appreciated. Thanks...

Try resetting the SMC: http://docs.info.apple.com/article.html?artnum=303446
If this does not fix it and you cannot boot to the CD, make sure to call Apple Support before you take it any where.
George

1st series iMac G5: Booting problems, kernel panics, waking from sleep...

Specifications of the iMac described: 1.8 Ghz, 1GB, 80GB, 64 Mb Nvidia VRAM, Airport, 10.5.5
Back in August 2004 my dad bought us kids an iMac G5 for ‘family use’. It had a fresh install of 10.3.5 on it and compared to the (1999) iMac G3 it replaced it was amazingly fast.
The iMac never showed any signs of probable issues, until we decided to upgrade to Leopard in January 2008. Initially, this upgrade was only meant to be able to sync with the latest iPod nano (who demanded a newer version of iTunes).
After the installation the first thing I noticed was a high CPU usage, the machine seemed slower than ever and that with 1 Gb of RAM (the minimum sys. req. for Leopard are 512 Mb of RAM). Anyway, then the real thing started, it wouldn’t turn on anymore. We brought it to an Authorized Apple Reseller, the Tech department said the Logic board had failed. The costs of the fix weren’t the worth the computer anymore, so...end of story. The iMac was indeed one of the bad series, although it hadn’t any swollen capacitors.
My dad already made up his mind and bought himself a Macbook. He then told me that if I was able to get the broken iMac fixed, I could keep it. And so, I bought an ‘as-is’ logic board on Ebay. Last weekend I installed it, and it actually seemed to work! Yet, the problems are during the startup: the first thing I see is a screen full with horizontal lines flickering all the time, like an old TV with bad signal. Mostly it won’t boot and I get the message to restart the computer (kernel panic, I got dozens of logs already!). Sometimes it got stuck during booting (grey apple screen with gear in the middle) making the fans go crazy (after a while) and sounding what others describe as a ‘jetliner taking off’ sound. Sometimes the screen remains black. Generally it takes me 5 to 10 minutes to start up properly. Maybe it’s just me but it seems like when the computer has warmed up a little (by turning on and off on and on) starting up gets smoother. I mean the startup screen suffers from less horizontal flickering lines.
During the use of Leopard, I again get high CPU usage, especially when I use multiple programs at the same time, or when starting multiple programs. My iStat Pro said once that the fans were running at 4700 rpm and the heat of the CPU was about 70 Celsius. If I really want to **** my iMac off I should play a racing game. That just totally freaks him out! These problems could probably be solved by adding more RAM. Right?
The iMac also has a sleep problem. Sometimes after lets say an hour or so, you can’t get it out of sleep mode (by manipulating keyboard and/or mouse, the sleep light stops, but the screen stays off --> only solution is to restart). What happened to me once was that it slept so long that it just got into a deep sleep by turning itself off completely!
Here’s a list of what I tried so far:
- Disk Utility: Resetting the permissions, no problems were found.
- Resetting the SMU, both on the logic board itself as by pressing the power button 5 - 8 seconds, no improvements.
- Resetting the PRAM, no improvements.
- Did the Hardware test of the original install CD, nothing was found, all good.
- Did Archive and Instal, this actually messed my system entirely, cause it wouldn't boot at all and when starting up from the Leopard installation DVD it wouldn't recognize the Macintosh HD.
- Did Archive and Instal with the original disks, this disk did recognize Macintosh HD and so I installed the original system, 10.3. Booting problems and those flickering lines are still there though.
Next phase will be erase and install, but first I want to know what you guys think about all this.
Oh eh, One more thing; The guys at Applecare (phone support) told me that the replaced logic board was also out of warranty and so they couldn’t help me. But as the man on the phone was kind, he told me to go look for a special ‘driver’ on the net. He said that the driver should be able to resolve some of the issues described. He said that I had to give in the name of the LB on google and look for results. Is this bogus? Because I haven’t found anything useful on google so far. What’s the name (rather than a number) of the LB in the first place?
I hope you guys can give me some answers. I'm kinda desperate. But I still feel there's hope...

The symptoms of a flakey power supply are sleep problems and you have done all the right things as far as resetting the SMU and PRAM. Your CPU usage can be tracked by going to Utilities>Activity Monitor - look and see what is hogging the memory. The flickering lines could also be an optical system going south.
The other thing you can do is run DiskWarrior or TechToolPro to see if you have corrupted directories. Preferential Treatment will let you check for corrupted preferences.

My iMac boots up and the mouse curser will move but nothing responds to the click. I was in the Apple store today and they reset the permissions, but still same problem. Help!!!

My iMac boots up fine and the mouse appears to be working fine however nothing responds to the mouse click. I took it to the Apple store today and they checked and repaired the permissions. I brought it home and still have the same problem. Does anyone have any ideas?

Hi, thanks for trying to help!
I just blew out the dust and turned it on again to the same problem.
So I tried holding the shift key which did something but then on reboot I got the same problem but this time worse, see here...
So I tried the alt key but that just gave me two startup disk options, both of which didn't work (they led to the same problem).
Then I tried CMD+s and followed your instructions, see below...
I just held the power button down and turned it on again and the same problem happened again.
Any further thoughts?
Thanks!
Alex

Imac G4 20 inch 512 mb ram 1.25 ghz boot problem

i have a boot problem with my imac when i start it up it keeps on loading forever i have made a video so you can see the problem any suggestions on what the problem could be? http://www.youtube.com/watch?v=yh2jhTf0MHI

Hello, and welcome to Apple Support Discussions!
While I did look at the video you posted, nothing was clearly evident in there;
so you may have to see if it is possible to start the computer from an install
disc, with C key held down, and use Disk Utility in the Installer's menu.
You may be able to see if you can 'verify' the hard disk drive, and if so, it
may be possible to 'repair' the Macintosh HDD. Some kinds of errors may
not be repairable by Disk Utility's tool options; but you could secure erase
the entire hard disk drive, and reformat it, then install a new system if that
may be the only way to make the computer work again.
Though the internal hard disk drive, or other hardware may be behind the
failure to get past the gray start screen with busy wheel, etc.
You may be able to try & see if the computer could start up in SafeBoot
mode, this is usually achieved on a startup by holding the Shift key down
and keeping it held down until you see there is a hint that the OS may work
but I usually suggest to keep the Shift key held down until you see the Login
screen (in Tiger) or a preliminary window appears in Panther, with SafeBoot
in a dialog box. In SafeBoot you can read system Console Logs, to try and
detect a hint of what isn't working, in those reports.
In SafeBoot, if the computer gets that far, it would be running in a reduced
version of OS X and you could also check the computer to see if the
hard disk drive shows up as Verified or passes SMART, etc. You can also
run Disk Utility's 'repair disk permissions' in Safeboot. Generally, after any
use of SafeBoot, you'd restart the computer; or try to.
The computer probably could use more than 512MB of RAM; the total it
can use, is 2048MB or two 1GB chips; each is a different style chip. The
lower more easily accessed RAM slot can use on 200-pin PC2700/DDR333
laptop chip similar to that which the 'mid-2005' iBook G4 uses, by specs.
There is a chance the data on the hard disk drive may be corrupted enough
to not get past the startup point; if you can't get a rise out of the computer
with Disk Utility or SafeBoot, or other localized means, you may have to get
and try to use a version of Disk Warrior on bootable CD; one most likely to
be similar to whatever OS X version is running in the computer.
Also, the hard disk drive may be worn out or have a defect; so due to age
and wear, that may be on its way out. There are several reasons why the
computer may get stuck at that stage of startup. There also are articles you
can find in a search, by using words such as ' Mac OS X gray screen start'
and other different ones, provide other responses. Some can be helpful;
in that owners with similar issues have posted online dozens of times, and
some of them get similar replies. You can test a validity of any consensus.
Without knowing more about the status of the computer, its hardware or
software; its history and use, etc; a reply can only focus on a few items.
• Mac OS X: Gray screen appears during Startup: (10.4/10.5/10.6)
http://support.apple.com/kb/TS2570
• Your Mac won't start up in Mac OS X (Mac OS X 10.3.9 or earlier)
http://support.apple.com/kb/ts1411
Some suggestions include resetting PRAM/NVRAM, among others
Most topics are searchable, and some pages have links within them.
Good luck & happy computing!

PC networking to iMac booted in Vista, and in vista emulation-Small office

Re: Wireless and Wired Network: probably using a dlink 825 dual n band wireless router.
1. How is a typical Dell/ vistax64 networked to an imac booted in vista x64?
2. How is a typical Dell/ vistax64 networked to an imac running vista x64 in emulation?
*3. how are they configured to simultaneously synch business files and digital images, that will originate from the dell, in situation 1 & 2 above?
I (might be) stuck getting a Dell/vista 64 to acquire digital dental x-rays in the treatment room, bec the sensor mfg'er says the drivers won't work(!) on a Mac booted in Vista, either way. But since the PC imaging app and PC practice management software works fine either way, the iMac will rule the Front Desk. I'm still not convinced about the driver PC only spec! ..... Please help me get the sync'ed networking configured. Thanks!

Hi there,
Could you provide the community with a little more information to help narrow troubleshooting? Specifically what is the model number for the printer? If you have difficulty locating the model number please use one of these guides to get it:
Deskjets
http://h10025.www1.hp.com/ewfrf/wc/document?tmp_renderType=findModel&cc=us&dlc=en&docname=c01105883&...
Envy Series
http://h10025.www1.hp.com/ewfrf/wc/document?tmp_renderType=findModel&cc=us&dlc=en&docname=c01105892&...
LaserJets
http://h10025.www1.hp.com/ewfrf/wc/document?tmp_renderType=findModel&cc=us&dlc=en&docname=c01230412&...
Officejets
http://h10025.www1.hp.com/ewfrf/wc/document?tmp_renderType=findModel&cc=us&dlc=en&docname=buu04090&l...
Photosmarts
http://h10025.www1.hp.com/ewfrf/wc/document?tmp_renderType=findModel&cc=us&dlc=en&docname=c01105892&...
PSC
http://h10025.www1.hp.com/ewfrf/wc/document?tmp_renderType=findModel&cc=us&dlc=en&docname=buu04090&l...
You can say thanks by clicking the Kudos Star in my post. If my post resolves your problem, please mark it as Accepted Solution so others can benefit too.

The mother of all re-boot problems.

Hi All,
I've got that re-boot problem that seems very common but the solutions out there aren't working.
Basically the computer will turn on, chime, grey screen comes up, shortly after apple logo, and then the gear starts turning, about 2 minutes later restart, process repeats.
I've tried.
- Booting from CD/Recovery Disk - Won't happen
- A million different key combinations, I've read about 10 different posts on key combinations and tried them all, including PRAM reset, boot from different source, etc.
Basically it's like my keyboard commands aren't being heard at all, but to test if the keyboard was working I pressed the caps lock button and the light was going on and off which tells me its powered. The only kind of input I have been able to acheive is by holding the mouse button down to eject the CD, other than that I have absolutly no control what so ever.
Would like any insight.
Cheers,
Jarrod.

HI,
If you've had your iMac for less then one year then it's covered by the one year limited warranty.
Take it to an Apple store or an Apple certified repair provider.
Carolyn
Message was edited by: Carolyn Samit

24" iMac Startup Problem

On several occasions (2-3) in the last few weeks with my new 24" iMac, I have attempted to boot the computer and gotten stuck on the grey screen. No progress wheel, just grey boot screen indefinitely.
On each occasion, I manually rebooted by holding the power button, and on the second attempt the computer booted without issue. Is this a potential hardware or software issue?
Has anyone else experience something similar?

I've experienced something similar... You can see another thread where I explained my situation and "solution" here:
http://discussions.apple.com/thread.jspa?threadID=683196&tstart=0
In short, in my case, the boot problem seems to be caused by the logic board... I don't know if that could be yours, too... I hope not for you...

Boot Problems (Fans Race)

I have a 20" 2007 2.0ghz C2D iMac that's refusing to boot, upon pressing the power button the fans race and nothing else happens. It will shut down if the power button is held for 5 seconds. If booted with no ram it doesn't beep, so it's not getting very far into the boot process.
So far I have confirmed (by testing in another iMac) that these components work:
hard drive - working iMac booted fine from this - s.m.a.r.t status was verified
ram - known to be working
CD drive - span up and read discs fine
LCD screen - worked fine
power supply - (just the circuit board - no cables) powered up the working iMac
This leads me to believe it's a problem with the logic board, however I tried the logic board from the working iMac (same age but 2.4Ghz) in the broken iMac, and even after a SMU reset it behaved in exactly the same way as before. That said, switching the suspect logic board into the working iMac didn't get much better results - the fans raced and it got stuck on a grey screen.
When booting the broken iMac (with it's own logic board) the first three lights come on the logic board light up, however the fourth doesn't - does this indicate something?
I don't really want to take this to be serviced as it'll cost more than it's worth spending, but does anyone have any ideas on what to try next?

Did it ever boot normally?
Until today, it had never boot abnormally.
Did you install any new software or memory just
before this started happening?
I installed some fonts last night... no new software immediately preceding this, however. Norton anti-virus, Microsoft Office, and a nightly WebKit build last week, but I've used it without problems since then.
Have you launched Disk Utility from your install disk
(located in the file menu) and Repaired Disk and
Repaired Permissions?
Not yet -- I was still in the denial / hopefull thinking phase of repair. Will do that and post back here either way. Thanks.

Installed new superdrive= CD boot problem

I just installed the Pioneer 110 superdrive, and had read previously to set the superdrive as the master and the HD as the slave, which is what I did. Everything works great except when using a boot disk. If there is a boot disk in the drive when I restart, it will boot off the CD without holding down the C key. Does this mean that the HD needs to be the master or could something else be wrong?

The DVD and HD are on the same cable in the G4 iMac... one has to be the master and one the slave. From the factory the HD was the master and the CD drive the slave, but on previous advice I reversed that when I installed the new DVD drive. I think that must have been bad advice but I will wait to hear from others before opening up the machine again, as the boot problem is the only glitch.
When I bought it my Mac dealer told me that PatchBurn is not needed with this drive and that appears to be the case... all the Apple software I have works natively with this drive... no patch necessary.

K7N2 Delta-L: Strange cold boot problem & solution

My K7N2 Delta-L has a problem cold booting when the vcore is set in the bios at 1.65v of higher. After a cold boot, you get a blank black screen. I noticed that even if you run at default speeds but set the vcore to 1.65v of higher the problem still occurs. There is no problem rebooting however.
I found the following solutions:
1. After you power up and get a blank, hit the reset button.
2. Don't unplug your PC. My PC is connected to a AVR and after I power down the PC I usually turn the AVR off. If i do this, than the computer will have a booting problem if I try to boot it up 30 minutes later or so. Now if I don't unplug it/power off the AVR than everything is fine.
I don't understand why it acts the way it does though.
Does anyone know of any other solutions?

Have you cleared the cmos. If you do be sure you have the power turned off don't move the cmos jumper with the power on.
I found that turning off power at power supply and unpluging, than turning on the computer the fans will spin just a little this drains all the power. Clear cmos 2-3 than return to
1-2 position.
Than plug the power back in and turn it back on, than try the computer again.

MSI P45 Neo-f with intermittent boot problems

Current system:
*CPU: Intel core2duo 4300 1,80GHz
Mobo: MSI P45 Neo-F LGA775
*Memory: 1 Kingston 1GB PC2-5300 667MHz DDR2 and 1 Dane-Elec 1GB PC2-5300 667MHz DDR2
Videocard: Club3D Nvidia 8800GT 512MB GDDR3
*Hard drive: 120GB IBM deskstar 7200rpm Ultra-ATA/100 (yes I realize it is known as the deathstar, but it hasn't failed so far, I do back-up because I'm paranoid
PSU: Real Silent Nexus NX-5000 500 watt
*Soundcard: Soundblaster Audigy
OS: Windows XP home, service pack 2
*Lite-on IT dvd-rom drive
*floppy disk drive
I also have 3 case fans spinning away in a marginally large Chieftec Dragon tower.
The parts I marked with an asterisk (*) are parts that I removed from my old rig and re-used.
I'll try to give a clear rundown of my problem and the steps I've taken so far.
3 days ago I acquired the P45 Neo and installed it into my system, together with the 8800GT videocard. I was still using my old PSU, a Chieftec 360watt. This PSU served me well for 7 years, but it was starting to build up noise while trying to keep up games on my old rig.
I had some trouble getting the system to boot, I tried changing some of the 4 pins wires going to the hard drive and the dvd drive. I don't know if it was luck or if I managed to divide the load properly for the system to boot. But I succeeded into booting up, got into the bios and eventually installed WinXP.
As soon as it was time to install the videocard drivers, it stopped responding. I assumed it was a power issue, since I could only install the 20pin and 4pin cpu, but my Chieftec PSU didn't have a 24pin plug to the mobo - and it needed replacing anyway! So I bought a new 500watt PSU that had all the required plugs and more wattage.
I installed the new PSU, checked every connection and pressed the power button. 'Lo and behold, the computer starts up. I install the videocard drivers and it proceeds with no problems. I try to install the soundcard, but the cd says I don't have one installed. I fix that by going to the System list and install the drivers from there. I install a firewall. By then I have successfully rebooted the computer 3 or 4 times. I decide all is well and turn off the computer. But I realize I wanted to check up something on the internet.
I press the powerbutton. The PC power light go up for just a fraction of a second. I can see the blue LED of one of the case fans switching on just as briefly - then it goes out. The computer keeps trying to turn itself on. It looks like it's hickupping to try and boot!
I turn off the PSU power on the back-side because the computer keeps trying and wait for a bit. After 10 minutes, it still doesn't work. I leave the computer for a bit and return an hour later. The computer then starts up with no problems. I turn it off after a few hours, do a reset, start it up, no problems. But then the next day it happens again.
It's pretty tough figuring out what the problem is because it looks..almost random. I considered it could be a heat issue, but sometimes it *does* start up just after it's been turned down. Checking the bios shows no strange temperature shifts.
Hope anyone can help me, because I do not want to go back to my old Asrock mobo

While powered down I cleared the cmos data, removed the Dane Elec DDR2 module and set the bios to optimized defaults. Computer restarted to WinXP with no problems (it has been off the whole night). I shut down WinXP, wait a few moments and then turn the computer back on. Alas, it won't start and starts hick-upping. I turn power off at the PSU again, so it stops.
Now I try switching out the Kingston module instead. By now the computer has been off for 10 min (while I write this entry on laptop). I press the power button on the PSU and then the power button on the front. There is a short pause, lasting a second. The computer turns on, longer now, but it only lasts 2 whole seconds before it turns off again and goes on again (I believe now you can call it powercycling). It repeats this process until I shut off the PSU.
I check to see if I have installed it properly and try again but it starts powercycling again.
15 min pass, I put the Kingston module back in, press the power button and voila, this time it does start. WinXP shows up, no problems. I leave it on for a bit and then shut down. And when I press the power button again - the feeling of dread returns, when it starts hickupping again.
I'm going to see if I can install one of the memory modules from my housemate. Then hopefully tommorrow, I'm going to try if I can test a different PSU, since I see someone else on the forum - who recently posted, has the exact same power supply and also has boot problems, coincidence... or not ^^;.

I have an early 2008 Mac Pro, which has re-booting problems. Also what does the spinning beach-ball indicate?

Hi, I have an early 2008 Mac Pro which has re-booting problems.
Processor speed is: 2.8
Memory: 2GB 800 MHz DDR2 FB-DIMM
2 x 28GHz Quad Core Intel Xeon
I am running OSX Yosemite Version 10.10
My Mac Pro keeps re-booting. Last year I had to replace my graphics card. My original card was the ATI Radeon HD 2600 XT 255MB, and that is what I have now. At this precise moment my Mac Pro is running perfectly, except that it is slow and the spinning beach-ball keeps appearing. I have managed to do some work with the disk utilities, verifying, cleaning and partitioning. Some errors were found and when it was cleaned this seemed to help my Mac Pro to function properly. Although I am able to use my Mac Pro now, from day to day I still experience re-boot problems. Also quite unexpectedly my mac dictionary has an error, it closed itself down and will not open at all, I had the message to say that a report will be sent to Apple.
I have tried starting my computer with an external hard drive fitted via a USB cable, I use for back-ups. This worked and I was able to wipe my hard drive clear and replace all info from the back up I had done only a few days ago.
This worked for a few days and then the same problem started again.
I am beginning to wonder if I need to buy a new hard drive.
If there is anyone who has some answers to help me solve my problem, I would be most grateful.
Robert

When you have the beachball activity, note the exact time: hour, minute, second.
These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting.

Windows 8.1 pro boot problems

I upgraded my OS on a hp pavilion g6-1d73us from windows 7 home premium to windows 8.1 pro and ever since I have had boot problems. I took all the software off since I thought that might be the problem but the boot problems persist. The computer's self diagnosis helps but I still have problems. Is my laptop incompatible with windows 8.1? Windows 8.1 was a download and I still have recovery disks for windows 7. I originally thought the problem was incompatible software but now I am not sure.

Hi @hifive11 ,
Thank you for visiting the HP Support Forums and Welcome. I am glad you have recovery disks for windows 7, smart thinking. I have looked into your issue about your HP Pavilion g6-1d73us Notebook and having issues with the Windows upgrade to 8.1. Here is a link to the drivers page for your product. I do notice there are drivers for Windows 8.The Updates you need for the system are the Chipset. These are located on the driver page link above.
One of the things that can cause an issue is things connected USB. The computer can not load the drivers so it causes an issue. Once the machine is up to date then return the USB devices.
Then I recommended to restore the BIOS to factory defaults.Here is a link to restore the BIOS.
You can do a system restore. System restore will help if something automatically updated and did not go well on the Notebook.
Please note remove any and all USB devices. Disconnect all non-essential devices.
Hope this helps.
Thanks.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

IMac boot problems

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