Power button hp 4510s probook

I have Hp 4510s probook. I tried to push the power button this morning, but it won't click and it won't switch the notebook on. I tried to use the quick email button, I can hear the mb going on, hd running, but nothing on the screen. The led of the power button was on and steady, but with a black screen. What can I do? Please help.

Hello vasheck, Fortunately, it is relatively easy to configure your touchpad to suit your preferences.
To start, open up the Control Panel from the Start menu. Then, change to "Classic View" (Vista) or change icon display to "Small icons" (Windows 7).
Double-click on "Mouse", and the Mouse Properties dialog will open up.
Click the "Device Settings" tab. Under the list of Synaptics devices installed on your system, click the "Settings..." button.
Now, the touchpad configuration window will appear.
Use this to configure your touchpad to work the way you want, there are lots of settings and videos on how to use them in this dialog, so feel free to explore.
If you want to disable pinch-to-zoom, you can do it by navigating to the "Pointer Motion -> Pinch" category or Zooming category (depending on the version of your driver).
Once you've got to the Zooming / Pinch Zoom option, simply uncheck it and click OK to disable pinch zoom.
Other settings, such as sensitivity, can be found here. Basically, every option relating to the operation of your touchpad can be found in this configuration tool. Let me know if you have anymore questions!
I am an HP employee.
• Say thanks by clicking the 'Thumbs Up' button on the left
• Make it easier for other people to find solutions, by marking my answer with 'Accept as Solution' if it solves your issue

Similar Messages

Probook 4535s-sleep pressing the power button doesn't work

Does this laptop can go to sleep via pressing the power button? I have these power settings but it doesn't work for me. The button just turn off the laptop...

freekarol,
Welcome to the HP Forum!
You can control what happens when you close the lid, press the power button, and other "power related" settings:
Control Panel < icon view > Power Options >>
Choose what the Power buttons do
and
Choose what closing the lid does
Happy Computing!
Click the Kudos Star!
It is a great “Thank You” for the HP Experts who are here to help!
Kind Regards,
Dragon-Fur

Hp 4510s probook - touchpad pinch--to-zoom disable

As the subject descibes... I'm trying to figure out how to disable the "pinch-to-zoom" on HP 4510s ProBook.
It's extremely annoying to be zooming in/out while typing in (e.g. MS Word) if I accidently touch the touchpad with my thumb(s). I'm not looking for adjusting the sensitivity of the touchpad. I have done that. I'm looking for completely disabling the feature.
Any suggestions or a link to a manual would be greatly appreciated.
Thank you!

Hello vasheck, Fortunately, it is relatively easy to configure your touchpad to suit your preferences.
To start, open up the Control Panel from the Start menu. Then, change to "Classic View" (Vista) or change icon display to "Small icons" (Windows 7).
Double-click on "Mouse", and the Mouse Properties dialog will open up.
Click the "Device Settings" tab. Under the list of Synaptics devices installed on your system, click the "Settings..." button.
Now, the touchpad configuration window will appear.
Use this to configure your touchpad to work the way you want, there are lots of settings and videos on how to use them in this dialog, so feel free to explore.
If you want to disable pinch-to-zoom, you can do it by navigating to the "Pointer Motion -> Pinch" category or Zooming category (depending on the version of your driver).
Once you've got to the Zooming / Pinch Zoom option, simply uncheck it and click OK to disable pinch zoom.
Other settings, such as sensitivity, can be found here. Basically, every option relating to the operation of your touchpad can be found in this configuration tool. Let me know if you have anymore questions!
I am an HP employee.
• Say thanks by clicking the 'Thumbs Up' button on the left
• Make it easier for other people to find solutions, by marking my answer with 'Accept as Solution' if it solves your issue

LED on the power button always on

Hello
I have ProBook 4540s. when it is switched (complete shut down not sleep or hibernate) the LED of the Power Button is stay on. I tired to remove the battery and replace it again and nothing still on. Please how to solve this issue? and does this issue will affect the device in any way?
Operating System Windows 7
Thanks,
Abu Anas

Hi AbuAnas,
To get your issue more exposure I would suggest posting it in the commercial forums since this is a commercial product. You can do this at Commercial Forums. You could try to update the BIOS.
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!

HT1384 My lock screen/power button on my iPod Touch is broken, and I need some assistance.

As the title suggests, I can not use the lock screen/power button on my iPod Touch, it is broken. I can use Adaptive Touch to turn the screen on and off at will, and also turn my device off. But if I turn it off, I don't know how to get it to turn back on. Could I just plug it into a charger and turn it back on, or would I need to plug it into my computer? Please help, in a few days I won't have access to it for 9 weeks, I need immediate help.

If you power off the iPod, it will turn back on if you connect it to a charger like a wall charger or a computer. I just checked with a charging source to confirm. I knew it did it with a computer.

I have frequent instances of my Macbook Pro beeping 3 times and then I have to forcefully shut it down by pressing the power button. What is this all about? Please help. Thank you.

I have frequent instances of my Macbook Pro beeping 3 times and then I have to forcefully shut it down by pressing the power button. What is this all about? Please help. Thank you.
I saw this report being sent to Apple:
Interval Since Last Panic Report: 581719 sec
Panics Since Last Report: 10
Anonymous UUID: F4CF708D-D85C-4EC5-8047-4FC22C6B03AF
Fri Mar 7 13:00:14 2014
panic(cpu 0 caller 0xffffff80002d1208): Kernel trap at 0xffffff800020c590, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0x0000000000000000, CR3: 0x0000000007541000, CR4: 0x0000000000040660
RAX: 0xffffff8000000000, RBX: 0xffffff800d35a870, RCX: 0xffffff800cf55cd8, RDX: 0xffffff80008a8fcc
RSP: 0xffffff805e5f3d60, RBP: 0xffffff805e5f3da0, RSI: 0x000000001dcd6500, RDI: 0xffffff800d168778
R8: 0x0000000000000001, R9: 0xffffff805e5f3e88, R10: 0x0000000000000011, R11: 0x0000000000000000
R12: 0x0000000000000000, R13: 0xffffff800d168770, R14: 0xffffff800d168778, R15: 0x0000000000000000
RFL: 0x0000000000010082, RIP: 0xffffff800020c590, CS: 0x0000000000000008, SS: 0x0000000000000010
Error code: 0x0000000000000000
Backtrace (CPU 0), Frame : Return Address
0xffffff805e5f3a00 : 0xffffff8000204d15
0xffffff805e5f3b00 : 0xffffff80002d1208
0xffffff805e5f3c50 :
Model: MacBookPro8,1, BootROM MBP81.0047.B27, 2 processors, Intel Core i5, 2.3 GHz, 4 GB, SMC 1.68f99
Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 384 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 5.100.198.104.5)
Bluetooth: Version 2.4.5f3, 2 service, 12 devices, 1 incoming serial ports
Serial ATA Device: Hitachi HTS545032B9A302, 298.09 GB
Serial ATA Device: OPTIARC DVD RW AD-5970H
USB Device: FaceTime HD Camera (Built-in), 0x05ac (Apple Inc.), 0x8509, 0xfa200000 / 3
USB Device: Hub, 0x0424 (SMSC), 0x2513, 0xfa100000 / 2
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 5
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x821a, 0xfa113000 / 8
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x0245, 0xfa120000 / 4
USB Device: Hub, 0x0424 (SMSC), 0x2513, 0xfd100000 / 2
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0xfd110000 / 3

Hmm. The problem still may be the RAM - Apple buys the RAM it puts in its machines from third-party vendors (usually Hynix) so it could be a RAM problem.
There are a couple of things that you can do yourself before taking your machine into an Apple Store or an AASP... download and run an application named Rember that will run a RAM test for you - let it run for a couple of hours or even overnight. If it turns out that your RAM is faulty, Rember will let you know. If it is faulty, then you have a couple of options - replace the RAM yourself or (particularly if you're under warranty still) take the machine to an Apple Store or AASP and have them replace the RAM.
If Rember finds no fault with the RAM, then you'll need to take it into an Apple Store/AASP and get a free diagnosis on the machine. Three beeps do usually indicate faulty RAM, but if it tests good with Rember you likely have another problem - it could be something as simple as the RAM, somehow, not seated correctly or signs of another hardware problem.
Run Rember first... call back with results.
Good luck,
Clinton

I am getting frequent lock-ups and blue screens during boot up. The lock ups occur during normal use and I cannot click anything or force quit. The cursor shows something is loading, but never stops. I have to use power button. Ideas?

I am getting frequent lock-ups and blue screens during boot up on my Mac Pro. The lock- ups occur sometimes during normal use and I cannot click anything or force quit. The cursor shows something is loading, but never stops. I have to use power button.
I had the Mac Defender malware and I have used apple jack but still having issues.

I am getting frequent lock-ups and blue screens during boot up on my Mac Pro. The lock- ups occur sometimes during normal use and I cannot click anything or force quit. The cursor shows something is loading, but never stops. I have to use power button.
I had the Mac Defender malware and I have used apple jack but still having issues.

MBP locks, thus force shutdown w/ Power button, then catastrophic app probs

I have had two unexpected system lock ups which may be releated to low battery power, but have then caused catastrophic application problems. I do not want answers to the individual application problems here, I will refer to other Apple Support pages and forums for those. I'm interested in other users experience of the same catastrophic failures, if at all.
Event 1. (OSX 10.4.8)
I was using the MPB on battery and I knew the power was running low, afraid I can't remember how low but I'm sure it was below 10%. Without warning iPhoto crashed with an exception popup which said that it was related to low power - I didn't note the exact wording. The machine remained on, but I couldn't do anything with it, so I had to shut it down by holding down the power button.
When I next used it, it seemed much of the applications I had had running at the time had all got corrupted;
- iPhoto: my library was gone next time I opened it. All the photo files are still there but some complain they are corrupted when trying to view them. I'd been using iPhoto at the time and rotating a lot of photos. Photos loaded and rotated in that session seemed to have survivied, ones unrotated complain of corruption when I try to view them. Other threads have suggested I need to do a complete rebuild.
- Dashboard: my whole set up has gone and it has reverted to a vanilla original set up.
- Trackpad: my settings had all disappeared and I had to set it up from scratch again.
- Skype: It no longer remembered my login details. This I found interesting as it is not an Apple app.
Event 2. (After 10.4.9 upgrade)
The second time I had left the MBP plugged in and in sleep mode, so it should have been well charged. A friend unplugged it to use the socket. When I went to use it it was still asleep. It was asleep and unplugged no more than 24 hours but my experience is it can live like this for days, so it should not have drained all power.
I could wake it but I have a password set and the system would not register the key presses I made for the pwd in the pwd box. ie. no *'s appeared each time I typed. The MBP was working because as I tried to wake it by doing various key presses I obviously did something which made it play a track from my iTunes library which had been running when I last put it to sleep.
Eventually again I had to shut it down using the power button. This time when I started it up I had the following;
- iTunes: It said my library was corrupted and it had to rename it and set it aside and create a new one, all my Music is there but it looks like I will have to rebuild.
- Mail: When I started Mail this time it requested I set up a mail account as if it was the first time I had used it. It looks like most of my mail files still exist in my Library/Mail folder but I somehow need to recover the mail account.
- Messenger: my icon I used doesn't work and it has defaulted to the icon associated with my MBP account I log in with. I understand this could be because the image I used for my icon came from my iPhoto library and it doesn't take a copy.
I am half way through recalibrating my battery as suggested elsewhere in these forums. After this I will reset the PMU/SMC. However after days of trawling the forums I have yet to find anyone describes problems like these, so I have reluctantly decided to start a new thread to see if anyone has had similar experiences.
My MBP is 5 months old, bought at the London Apple Store in Nov 2006.
MacBook Pro 17" 2.33 GHz Intel Core 2 Duo Mac OS X (10.4.9) Memory 2 GB 667 Mhz DDR2 SDRAM
Intel MacBook Pro 17" Mac OS X (10.4.9)

I came to a similar conclusion after trying Disk Utility. It said the disk needs to be reformatted. Unfortunately, I've not been doing TimeMachine backups for 2-3 months due to problems I had with it. one of those "I'll take care of that sometime soon" things where soon doesn't get here.
Right now I'm getting ready to hook up the backup drive and see what I can rescue.
Chuck

Power button and other functions on my Nokia N86 s...

After I downloaded a few applications for my Nokia N86, the slider preferences (i.e. the sound clips that play when opening/closing the slider; the answer/hang up call function; and the key lock) stopped working. Some apps refuse to open (no response). Also, when I push the power button on top of the phone, it does absolutely nothing, thus I cannot turn my phone off.
I am affraid to take the battery out and let the phone power down then up because the power button might not be able to turn it on.
This occurred after I downloaded a few apps off of cnet.com. Here is a list of my downloaded apps with the most recently downloaded ones listed first:
F-Secure (anti virus added and scanned after problem started - no viruses present)
Handywi (wifi locator)
fring (social networking bundle)
DivX player
Google app (m.google.com/app)
Google maps
Opera Mini (web browser that now refuses to open)
HNN Soft Talking Dictionary (Chinese/English that now refuses to open)
What should I do???
(Yes, I have the most current software update)
(Not sure if it matters, but I live and bought the phone in Taipei, Taiwan)
Message Edited by sk8erfrombham on 07-Jul-2009 02:22 PM
Solved!
Go to Solution.

Sorry, if you are not willing to try it then I cannot help you.
Take it to a nokia care point for assitance.
Care points/service centres and repair info:
UK • Europe • Asia-Pacific • USA •
Canada • Middle East and Africa
Elsewhere: Click here, select your country, go to the support section, then select repair.

IMac will only restart or shutdown from power button.

My iMac will only restart or shutdown from the power button, it also will not logoff users. It starts ok, but only after a hard reboot?? I have repaired permisions and no change. I have a clone I can restore from but any ideas whats up here?
The only things that I know I have altered are deleting files saved during migration from Panther (months ago)and running Unbuntu Live CD.
iMac G4 15 Mac OS X (10.4.7) 728ram

Are you booting into Ubuntu Linux? Most of us here wouldn't now anything to do with it. If the problem is occurring when booted into Mac OS X, it may be a sign of data corruption in the power management and user settings. Some corruption is easy to repair such as fixing the directory (which I'd only do after a clone). Here's how according to my FAQ:
http://www.macmaps.com/directoryfaq.html
And I assume the issue is with your iMac G4.

Faulty/stuck power button again! Who was the genius that located the ear-jack hole with the "Liquid Contact Indicator" at the top of the iPhone, so perspiration can accumulate and void the warranty

My Power button is stuck again...... like many, many other owners....like two of my previous iPhones. According to the Genius at the Genius Bar in Reno, Nv., my warranty is void because the LCI which is located in the ear-jack hole on the top, has come in contact with moisture/humidity/sweat. My iPhone has never been dropped or wet. My iPhone4s is in pristine conditon and is in great working order except for the "stuck" power button, but because of a poor quality and location of the ear-jack hole, my warranty has been voided. Everything I have is Apple. The Rep/Genius in Reno while fullly aware on the chronic power button problems, tried to put the stuck button on an exposure to moisture. He said, "It doesn't matter if mositure didn't cause the button to stick or not. Your warranty voided because of the Liquid Contact Indicated turned color. Of course, the "power/sync" hole LCI is perfect. Thank you Apple! I think I'll refuse my iPhone5 delivery on Friday and go buy a "Droid" phone.
Hey, who out there wants to buy my new iPhone5 when it gets to me on Friday???

Thanks for your reply. I too would not rule out moisture damaging the power button, but ...
I guess was being too subtle. My points are:
1. "Stuck" power buttons is a known issue/problem and Apple has been dealing with it since the first iPhone. This is quality problem. The evidence is with other users all around us and all over the web.
2. The "sweat" issue is a design problem and should've been addressed long before the release of the iPhone5 in a few days. Yes, they moved iPhone5's headphone-jack to the bottom/underneath of the iPhone. To say that the "sweat" issue is the users' fault is like saying, Apple iPhones should only be sold to swine or other mammals without sweat glands. We're talking about as little as one drop from someone's temple running down the headphone-jack opening while one is engadged with a phone call. That's all it takes to change the color of the LCI.
3. Also I wanted to make my complaint public on this forum and not Facebook, hoping to both, not only catch the eye of an Apple lurker, but let others know of the danger of speaking on their iPhones while out in the sun, high humidity or driving a car with the top down....... my point being, even the free AT&T Go Phones have protection against the slightest elements.
4. I paid close to $700 for this iPhone4s 64G less than a year ago. I don't like being dismissed with a cut and dry, cookie-cutter answer from a 20yr old without reasonable explanation and then be shoo'd out the door. "Next?"
5. I love Apple products and I'm glad the new release has addressed the jack/perspiration problem although I know there were other factors involved in the decisions to not move/move it.

Hi I have a MacBook Pro 2011 i7 and it stays on for about 4 hours then the screen go's fuzzy and I have to turn it off by the power button has anyone had this problem thanks mike

I Have a MacBook Pro i7 2011 it stays on for about 4 hours then the screen go's all fuzzy and I have to turn it off by the power button has any body else had this problem thanks mike

My guess would also be a failling connection between your logicboard and your GPU. See 2011 MacBook Pro and Discrete Graphics Card
For most users it starts with some random crashes and freezes like you describe it. And then it just gets worse and worse. There are still no "good" solutions, sadly. This is a hardware problem from the production.

After reading and resetting everything with Keyboard I still get blank white screen. The only way I can boot to Mavericks is unplug power cord, push and hold power button while plugging power cord in. Fans at full speed.

After reading and resetting everything with Keyboard I still get blank white screen on 2nd? page of boot. The only way I can boot to Mavericks is unplug power cord, push and hold power button while plugging power cord in. Fans run at full speed, machine boots then runs normal except the dvdrw will not . The mid 2011 IMAC had the same problem with LION. I changed hard drives, formatted, and installed a clean install of latest os x mavericks. Any help would be greatly appreciated.
EtreCheck version: 1.9.15 (52)
Report generated August 30, 2014 at 6:56:41 PM EDT
Hardware Information: ?
    iMac (21.5-inch, Mid 2011) (Verified)
    iMac - model: iMac12,1
    1 2.5 GHz Intel Core i5 CPU: 4 cores
    4 GB RAM
Video Information: ?
    AMD Radeon HD 6750M - VRAM: 512 MB
        iMac 1920 x 1080
System Software: ?
    OS X 10.9.4 (13E28) - Uptime: 0 days 0:16:53
Disk Information: ?
    ST3120026AS disk0 : (120.03 GB)
    S.M.A.R.T. Status: Verified
        EFI (disk0s1) <not mounted>: 209.7 MB
        Untitled (disk0s2) / [Startup]: 119.17 GB (87.12 GB free)
        Recovery HD (disk0s3) <not mounted>: 650 MB
    HL-DT-STDVDRW GA32N
USB Information: ?
    Apple Inc. FaceTime HD Camera (Built-in)
    CHICONY USB NetVista Full Width Keyboard
    Apple Inc. BRCM2046 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Computer, Inc. IR Receiver
    Apple Internal Memory Card Reader
Thunderbolt Information: ?
    Apple Inc. thunderbolt_bus
Gatekeeper: ?
    Anywhere
Kernel Extensions: ?
    [loaded]    com.nvidia.CUDA (1.1.0) Support
    [loaded]    com.sophos.kext.sav (9.0.61 - SDK 10.7) Support
    [loaded]    com.sophos.nke.swi (9.0.53 - SDK 10.8) Support
Startup Items: ?
    CUDA: Path: /System/Library/StartupItems/CUDA
    FanControlDaemon: Path: /Library/StartupItems/FanControlDaemon
Launch Daemons: ?
    [loaded]    com.adobe.fpsaud.plist Support
    [running]    com.arcsoft.eservutil.plist Support
    [running]    com.bjango.istatmenusdaemon.plist Support
    [loaded]    com.oracle.java.Helper-Tool.plist Support
    [running]    com.sophos.autoupdate.plist Support
    [running]    com.sophos.configuration.plist Support
    [running]    com.sophos.intercheck.plist Support
    [running]    com.sophos.notification.plist Support
    [running]    com.sophos.scan.plist Support
    [running]    com.sophos.sxld.plist Support
    [running]    com.sophos.webd.plist Support
Launch Agents: ?
    [running]    com.arcsoft.esinter.plist Support
    [running]    com.bjango.istatmenusagent.plist Support
    [loaded]    com.nvidia.CUDASoftwareUpdate.plist Support
    [loaded]    com.oracle.java.Java-Updater.plist Support
    [running]    com.sophos.uiserver.plist Support
User Login Items: ?
    Macs Fan Control
    Firefox
Internet Plug-ins: ?
    FlashPlayer-10.6: Version: 14.0.0.176 - SDK 10.6 Support
    Flash Player: Version: 14.0.0.176 - SDK 10.6 Support
    QuickTime Plugin: Version: 7.7.3
    JavaAppletPlugin: Version: Java 7 Update 67 Check version
    Default Browser: Version: 537 - SDK 10.9
Audio Plug-ins: ?
    BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
    AirPlay: Version: 2.0 - SDK 10.9
    AppleAVBAudio: Version: 203.2 - SDK 10.9
    iSightAudio: Version: 7.7.3 - SDK 10.9
iTunes Plug-ins: ?
    Quartz Composer Visualizer: Version: 1.4 - SDK 10.9
3rd Party Preference Panes: ?
    CUDA Preferences Support
    Fan Control Support
    Flash Player Support
    Java Support
Time Machine: ?
    Time Machine not configured!
Top Processes by CPU: ?
         1%    WindowServer
         1%    fontd
         0%    firefox
         0%    SystemUIServer
         0%    SophosWebIntelligence
Top Processes by Memory: ?
    229 MB    firefox
    156 MB    SophosScanD
    152 MB    InterCheck
    131 MB    com.apple.IconServicesAgent
    115 MB    SophosAntiVirus
Virtual Memory Information: ?
    424 MB    Free RAM
    1.53 GB    Active RAM
    1.37 GB    Inactive RAM
    699 MB    Wired RAM
    1.26 GB    Page-ins
    0 B    Page-outs

I'd start by getting rid of the following software responsible for these extensions.
Kernel Extensions: ?
    [loaded]    com.nvidia.CUDA (1.1.0) Support
    [loaded]    com.sophos.kext.sav (9.0.61 - SDK 10.7) Support
    [loaded]    com.sophos.nke.swi (9.0.53 - SDK 10.8) Support
Startup Items: ?
    CUDA: Path: /System/Library/StartupItems/CUDA
    FanControlDaemon: Path: /Library/StartupItems/FanControlDaemon
Use the uninstaller provided with the Sophos software. You can uninstall CUDA via the preference pane. Be sure you remove the com.nvidia.CUDA extension which is located in the /System/Library/Extensions/ folder. Not sure if Fan Control has an uninstaller so you will have to do it manually:
Uninstalling Software: The Basics
Most OS X applications are completely self-contained "packages" that can be uninstalled by simply dragging the application to the Trash. Applications may create preference files that are stored in the /Home/Library/Preferences/ folder. Although they do nothing once you delete the associated application, they do take up some disk space. If you want you can look for them in the above location and delete them, too.
Some applications may install an uninstaller program that can be used to remove the application. In some cases the uninstaller may be part of the application's installer, and is invoked by clicking on a Customize button that will appear during the install process.
Some applications may install components in the /Home/Library/Applications Support/ folder. You can also check there to see if the application has created a folder. You can also delete the folder that's in the Applications Support folder. Again, they don't do anything but take up disk space once the application is trashed.
Some applications may install a startupitem or a Log In item. Startupitems are usually installed in the /Library/StartupItems/ folder and less often in the /Home/Library/StartupItems/ folder. Log In Items are set in the Accounts preferences. Open System Preferences, click on the Accounts icon, then click on the LogIn Items tab. Locate the item in the list for the application you want to remove and click on the "-" button to delete it from the list.
Some software use startup daemons or agents that are a new feature of the OS. Look for them in /Library/LaunchAgents/ and /Library/LaunchDaemons/ or in /Home/Library/LaunchAgents/.
If an application installs any other files the best way to track them down is to do a Finder search using the application name or the developer name as the search term. Unfortunately Spotlight will not look in certain folders by default. You can modify Spotlight's behavior or use a third-party search utility, EasyFind, instead.
Some applications install a receipt in the /Library/Receipts/ folder. Usually with the same name as the program or the developer. The item generally has a ".pkg" extension. Be sure you also delete this item as some programs use it to determine if it's already installed.
There are many utilities that can uninstall applications. Here is a selection:
    1. AppZapper
    2. AppDelete
    3. Automaton
    4. Hazel
    5. AppCleaner
    6. CleanApp
    7. iTrash
    8. Amnesia
    9. Uninstaller
10. Spring Cleaning
For more information visit The XLab FAQs and read the FAQ on removing software.
Be sure to remove your two Login Items. Finally do this:
Reinstall Lion, Mountain Lion, or Mavericks without erasing drive
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu.
Reinstall Lion, Mountain Lion, or Mavericks
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
OS X Lion- Reinstall Mac OS X
     Note: You will need an active Internet connection. I suggest using Ethernet
                 if possible because it is three times faster than wireless.

Froze on black screen and power button does not work

my sons ipod touch is stuck on a black screen when plugged into the computer got a spinning wheel and will not connect now spinning wheel will not go away the power button does not work so can not reset it manually
any suggestions would be appreciated

- iOS: Not responding or does not turn on
Neglect the reset and when it says place the iPod in recovery mode use one of thes programs
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

Mid 2011 Macbook Air - Yosemite keyboard and trackpad stopped working, the only button that worked was the power button, only one USB port works.

I have a Mid 2011 Macbook Air.
Upgraded to Yosemite last week.
Three days ago I was using my Macbook Air for the first time since upgrading to Yosemite. I had been using my Macbook Air for approximately 30 minutes, I was using safari and the keyboard and trackpad stopped working (would not respond). The only button that worked was the power button.
I rebooted and they were still not working. I plugged in a USB mouse and external USB keyboard, only one USB port would work (the Left USB port if looking at the screen) so I had to swap between keyboard and mouse.
After logging in there is a bluetooth icon at the top of the screen with a sawtooth line through it. Bluetooth is unavailable and the bluetooth icon is missing from the system preferences menu.
If I run a hardware test by holding D (on USB keyboard) at startup it says that no problems are found and at the conclusion of the test the keyboard and trackpad start working again. When I log on the bluetooth is working again.
I shut down the Macbook Air and when I started it again the keyboard and trackpad and right side USB ports were all not working again. I logged in using the USB keyboard and mouse and the bluetooth not available sawtooth icon had returned.
I ran the hardware test again and at the conclusion of the test the trackpad and keyboard started working again.
I have tried deleting com.apple.Bluetooth.plist and com.apple.Bluetooth.plist.lockfile from /Library/Preferences/ and tried resetting SMC and Power Functions but this did not fix the issue. The only thing that seems to work is running a hardware test - obviously I don't want to do this every time I use the computer.
I do not believe any hardware is faulty/damaged - I think it has something to do with bluetooth/Yosemite.
I do not have the Macbook with me at the moment, if you have suggestions that I can try or additional checks/info you require please let me know and I can get back to you.
Thanks,
John

Hi!
I have exactly the same problem, and I can't find any solution.
I can't even track down the root of the problem: the Bluetooth/Wifi module? The trackpad? The keyboard/top case? The logicboard?
I've tried all the usual: SMC/PRAM reset, clean install, kext cache clearing.
Any suggestion is greatly appreciated!

Power button hp 4510s probook

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