Upgraded to Yosemite from Mt.Lion, now my MacMini is extremely slow

After installing Yosemite my Mini runs horribly slow. It takes 3 minutes to open Safari, several minutes to open a new page and forget about streaming anything...Is there a way to go back to a previous OS? This is truly disappointing and unacceptable. Glad I didn't jump in and upgrade my MacBook Air too.

Try these in order testing your system after each to see if it's back to normal:
1. a. Resetting your Mac's PRAM and NVRAM
    b. Intel-based Macs: Resetting the System Management Controller (SMC)
2. Restart the computer in Safe Mode, then restart again, normally. If this doesn't help, then:
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the Utilities 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.
3. Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the Utilities menu. Repair the Hard Drive and Permissions as follows.
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 click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
4. Reinstall Yosemite: Reboot from the Recovery HD. Select Reinstall OS X from the Utilities menu, and click on the Continue button.
    Then download and install the OS X Yosemite 10.10.3 Combo Update.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.
5. Reinstall Yosemite from Scratch:
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
    How to Clean Install OS X Yosemite.
    Then download and install the OS X Yosemite 10.10.3 Combo Update.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.

Similar Messages

Boot camp lost after upgrading to Yosemite from mountain lion

I lost my windows7 boot camp after I upgrade to Yosemite from mountain lion. When I press ALT when rebooting there is no more alternative to boot for window anymore. I did read some thread about this but my case is different since when I tried to type 3 steps(diskutil.......etc) as LonerT user answers it did not work. The attached files here are what I faced with. Please help. I have a lot of important files in windows

If you look at the GAP between GPT3 and GPT4 it is start/size of 782929176/37595880 but the NTFS header starts at 782929920 according to your Testdisk output shown here.
MS Data                782929920 976773112 193843193
The difference is 782929920 - 782929176 = 744 bytes. You will need to delete the current GPT4 and recreate a new GPT4. Please stop if you see any error messages and post here.
1. Delete the old entry and create a new entry at GPT#4.
sudo gdisk /dev/disk0
p
d
4
n
4
782929920
976773112
0700
p
w
y
Here is an example of the delete/new...
Command (? for help): d
Partition number (1-4): 4
Command (? for help): n
Partition number (4-128, default 4): 4
First sector (34-1954210086, default = 1454210080) or {+-}size{KMGTP}: 1454211072
Last sector (1454211072-1954210086, default = 1954210086) or {+-}size{KMGTP}: 1954209791
Current type is 'Apple HFS/HFS+'
Hex code or GUID (L to show codes, Enter = AF00): 0700
Changed type of partition to 'Microsoft basic data'
Command (? for help): p
Disk /dev/disk0: 1954210120 sectors, 931.8 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 6ED0C429-00D1-4759-B50E-04B6FB80D0E3
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1954210086
Partitions will be aligned on 8-sector boundaries
Total free space is 1293 sectors (646.5 KiB)
Number Start (sector)    End (sector) Size       Code Name
   1              40          409639   200.0 MiB   EF00 EFI System Partition
   2          409640      1452940543   692.6 GiB   AF00 Customer
   3      1452940544      1454210079   619.9 MiB   AB00 Recovery HD
   4      1454211072      1954209791   238.4 GiB   0700 Microsoft basic data
2. This is a tedious process and you want to check after the second 'p'rint command that it looks reasonable, before the 'w'rite and 'y'es to confirm.
3. You will need to reboot after the change, because the disk you are booted from is the one being modified. Reboot will rebuild disk0s4 using the start/end you entered.
4. Run the dd command - sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C and check that the first line contains "R.NTFS".
5. Once you have a working GPT#4, a new hybrid MBR needs to be created which will overwrite what you see in your Fdisk output. This is also done using GPT Fdisk (Gdisk). Your numbers will look different than what are in the following example. In most cases, you will use the default except entry 4, which should have a 'y' for bootable flag.
sudo gdisk /dev/disk0
GPT fdisk (gdisk) version 0.8.10
Warning: Devices opened with shared lock will not have their
partition table automatically reloaded!
Partition table scan:
MBR: hybrid
BSD: not present
APM: not present
GPT: present
Found valid GPT with hybrid MBR; using GPT.
Command (? for help): p
Disk /dev/disk0: 490234752 sectors, 233.8 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 59BDFEEB-1EB4-4529-94FE-3CBC2C3CD513
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 490234718
Partitions will be aligned on 8-sector boundaries
Total free space is 2604 sectors (1.3 MiB)
Number Start (sector)    End (sector) Size       Code Name
   1              40          409639   200.0 MiB   EF00 EF
   2          409640       401060383   191.0 GiB   AF05 Macintosh HD
   3       401060384       402329919   619.9 MiB   AB00 Re
   4       402331648       490233848   41.9 GiB    0700 Microsoft basic data
Command (? for help): r
Recovery/transformation command (? for help): h
WARNING! Hybrid MBRs are flaky and dangerous! If you decide not to use one,
just hit the Enter key at the below prompt and your MBR partition table will
be untouched.
Type from one to three GPT partition numbers, separated by spaces, to be
added to the hybrid MBR, in sequence: 2 3 4
Place EFI GPT (0xEE) partition first in MBR (good for GRUB)? (Y/N): y
Creating entry for GPT partition #2 (MBR partition #2)
Enter an MBR hex code (default AF): AF
Set the bootable flag? (Y/N): n
Creating entry for GPT partition #3 (MBR partition #3)
Enter an MBR hex code (default AB): AB
Set the bootable flag? (Y/N): n
Creating entry for GPT partition #4 (MBR partition #4)
Enter an MBR hex code (default 07): 07
Set the bootable flag? (Y/N): y
Recovery/transformation command (? for help): w
Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!
Do you want to proceed? (Y/N): y
OK; writing new GUID partition table (GPT) to /dev/disk0.
Warning: Devices opened with shared lock will not have their
partition table automatically reloaded!
Warning: The kernel may continue to use old or deleted partitions.
You should reboot or remove the drive.
The operation has completed successfully.
6. a. Test 1 - Can you see your Bootcamp volume in Finder.
    b. Test 2 - Can you files in the Bootcamp volume?
    c. Test 3 - Can you see Bootcamp in your System Preferences -> Startup Disk.
    d. Test 4 - If Test 1-3 are successful, select Bootcamp and click on Restart. You may need Windows startup repair, if you see a hanging underline cursor at the top left corner of your screen. In most cases, it is not required.
Here is an example...
Command (? for help): d
Partition number (1-4): 4
Command (? for help): n
Partition number (4-128, default 4): 4
First sector (34-1954210086, default = 1454210080) or {+-}size{KMGTP}: 1454211072
Last sector (1454211072-1954210086, default = 1954210086) or {+-}size{KMGTP}: 1954209791
Current type is 'Apple HFS/HFS+'
Hex code or GUID (L to show codes, Enter = AF00): 0700
Changed type of partition to 'Microsoft basic data'
Command (? for help): p
Disk /dev/disk0: 1954210120 sectors, 931.8 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 6ED0C429-00D1-4759-B50E-04B6FB80D0E3
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1954210086
Partitions will be aligned on 8-sector boundaries
Total free space is 1293 sectors (646.5 KiB)
Number Start (sector)    End (sector) Size       Code Name
   1              40          409639   200.0 MiB   EF00 EFI System Partition
   2          409640      1452940543   692.6 GiB   AF00 Customer
   3      1452940544      1454210079   619.9 MiB   AB00 Recovery HD
   4      1454211072      1954209791   238.4 GiB   0700 Microsoft basic data

I just upgraded to Yosemite. Iphoto is now broken. Upon upgrade receiving error "This update is not available for this Apple ID either because it was bought by a different user or the item was refunded or cancelled."

I just upgraded to Yosemite. Iphoto is now broken. Upon upgrade receiving error "This update is not available for this Apple ID either because it was bought by a different user or the item was refunded or cancelled."

Perform the following, stopping with the first one which works:
1. Open the Mac App Store's Purchases tab. If you're prompted to accept iPhoto into your Apple ID, do so.
2. Move it out of the Applications folder(it may need to be put into the Trash temporarily), and then see if you can download it for free from its individual product page.
3. Click here and contact Apple.
(116137)

After upgrading to Yosemite, my MacBook Pro now requires me to enter a password whenever I start up my computer. I want to eliminate this step. How?

After upgrading to Yosemite, my MacBook Pro now requires me to enter a password whenever I start up my computer. I want to eliminate this step and to go back to the ability to reboot and begin using without a login. How do I accomplish this?

Hightlight Login Option. This will bring up the window showing Automatic login.
Please post a pic of your window if Automatic login is missing. Make sure your personal info is not showing.

After upgrading macbook pro from mountain lion to mavericks computer performance slowdown

after upgrading macbook pro from mountain lion to mavericks computer performance slowdown

Fixing a Mavericks Installation Problem
How to manage a failed OS X Mavericks installation | MacFixIt - CNET Reviews.
Try these in order:
1. a. Resetting your Mac's PRAM and NVRAM
    b. Intel-based Macs: Resetting the System Management Controller (SMC)
2. Restart the computer in Safe Mode, then restart again, normally. If this doesn't help, then:
     Boot to the Recovery HD: Restart the computer and after the chime press and hold down the
     COMMAND and R keys until the Utilities 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.
3. Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the Utilities menu. Repair the Hard Drive and Permissions as follows.
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 click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
4. Reinstall Lion/Mountain Lion, Mavericks: Reboot from the Recovery HD. Select Reinstall Lion/Mountain Lion, Mavericks from the Utilities menu, and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

I have upgraded my OX from mountain lion to mavericks . the installer is asking for previous product key. How to know about previous key as the trial version is installed and I have paid for upgrade cost?

I have upgraded my OX from mountain lion to mavericks . the installer is asking for previous product key. How to know about previous key as the trial version is installed and I have paid for upgrade cost? I dont have the previous product key.

virenkhare wrote:
I have upgraded my OX from mountain lion to mavericks . the installer is asking for previous product key. How to know about previous key as the trial version is installed and I have paid for upgrade cost? I dont have the previous product key.
There are no keys, there is no trial version of OSX (ML or Mavericks) and Mavericks is free
What have you downloaded, and where did you get it

My MacBook Air (13" Mid 2012) 1.8 GHz, i5, 4 GB 1600 MHz DDR3 becomes sluggish, particularly web browsing after upgrading to yosemite from mavericks

my MacBook Air (13" Mid 2012) 1.8 GHz, i5, 4 GB 1600 MHz DDR3 becomes sluggish, particularly web browsing after upgrading to yosemite from mavericks

Mine is exactly the same machine and is working with any kind of problems.
Try to see this:
Clean space, make faster

I upgraded to Yosemite from Snow Leopard and lost my address book. Is there any way to retrieve the information?

I upgraded to Yosemite from Snow Leopard and lost my address book. Is there any way to retrieve the information?

Transfer iTunes purchases by:
iTunes Store: Transferring purchases from your iPhone, iPad, or iPod to a computer
Transfer other music by using a third-party programlike one of those discussed here:
Copy music from Ipod to new computer...: Apple Support Communities
You can also rredownload mos iTunes purchases by:
Downloading past purchases from the App Store, iBookstore, and iTunes Store

Do you recommend i upgrade to yosemite from mavericks

do you recommend i upgrade to yosemite from mavericks

Upgrade:
IF you have a complete, bootable backup of your current system and you also took the basic precaution of saving a copy of the Mavericks installer app (or making a bootable installer on a flash drive), because Apple has rather incomprehensibly removed Mavericks for download. If you have no backup of your system or the Mavericks installer, you'd be foolish to upgrade. If Mavericks is in your App Store list of purchased software, download it and save it before proceeding.
IF your current system is running well. Installing Yosemite is not likely to improve a flaky, slwareow system.
IF you have checked to see that the apps you need most are compatible with Yosemite.
The safest approach is to install it on a test basis, on a spare HD.

I installed the latest update of iTunes and now my computer is extremely slow and it freezes, What should I do to make it run as usual?

I installed the latest update of iTunes and now my computer is extremely slow and it freezes. When I click on the itunes icon, nothing happens, if it opens is a long time afterwards. Most of the time it does not even open, but the computer is very slow. It is a PC desktop running windos xp.

Hey ArgentoSB!
I have an article for you that can help you troubleshoot these issues:
iTunes for Windows XP: Troubleshooting unexpected quits, freezes, or launch issues
http://support.apple.com/kb/ts1421
Take care, and thanks for visiting the Apple Support Communities.
-Braden

I recently cleared my hardrive and reloaded the install software including snow leopard and now the browser is extremely slow. Any ideas

I recently cleared my hardrive and reloaded the install software including snow leopard and now the browser is extremely slow. Any ideas

Your profile says OS 10.5.8, Snow Leopard is 10.6.
After installing Snow Leopard, did you do a software update? Apple menu / Software update ..
If you have not run it yet, do so. It will give you the highest versions of Snow Leopard and Safari. That might help.

I upgraded my OS from Mountain Lion 10.8.5 straight to Yosemite and now my iMac will turn on but will only go to a gray screen?

After I installed Yosemite on my iMac, it will not restart. I goes to a gray screen and stops. The cursor moves around but the screen is blank? I went from Mountain Lion 10.8.5 straight to Yosemite, without upgrading to Maverick. Could that be the problem? And can I get it back to previous?
Thanks, Phil.

10.8.2 is no longer available. You can't install what you can't find.
The download you found at Apple is an update file for 10.8 or 10.8.1 users and will not install without those versions being present.

Currently on Mountain Lion. Tried to upgrade to Yosemite. Computer is now locked onto OSX installation page. No access to finder or anything. Have to push off button to shut computer down.

iMac running Mountain Lion.... Yesterday, I tried to upgrade to Yosemite. System seemed to be upgrading. However, the OSX installation window is now frozen on the computer with the blue bar showing installation complete. I do not have access to even the finder. Force quitting with keys is not working. The only way I can shut the computer down is to hold down the on/off button. Restarting brings up the same frozen OSX installation window. What to do?
Cherie

There are three ways:
A. Reinstalling Yosemite, Mavericks, Lion/Mountain Lion Without Erasing the 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 the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
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 click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
B. Install or Reinstall from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard 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.
Erase the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your startup volume (usually Macintosh HD) from the
      left side list. Click on the Erase tab in the DU main window.
3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on
        the Security button and set the Zero Data option to one-pass. Click on
      the Erase button and wait until the process has completed.
4. Quit DU and return to the main menu.
Reinstall Yosemite: Select Reinstall OS X and click on the Install button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.
C. Internet Recovery
Install OS X Using Internet Recovery
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Internet Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.
Partition and Format the hard drive:
Select Disk Utility from the main menu and click on the Continue button.
After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.
Reinstall Yosemite: Select Reinstall OS X and click on the Install button. Be sure to select the correct drive to use if you have more than one.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
This should restore the version of OS X originally pre-installed on the computer.

Upgrading Server directly from Mountain Lion to Yosemite?-

Hello all,
I have a Mac Mini running Mountain Lion (10.8.5) and Server (2.2), hosting a small private webserver (PHP + MySQL), VPN, some LaunchAgents cron jobs, and file sharing service. I'd like to upgrade it directly to Yosemite and the latest Server app (4.0).
However I'm not an expert in server stuff, and I'd like to be sure that the direct upgrade will correctly migrate all my current Server settings. I've fiddled with the settings over time (including files like httpd.conf or php.ini, or adding self-signed SSL certificates) and I don't think I could easily "recreate" them from scratch if something went wrong…
So here are some questions:
"Software update" is suggesting me to upgrade to Yosemite, which is fine, but does not suggest me to upgrade Server too. Is this normal? I know that Server is a paid upgrade, but I'm surprised there is no automated upgrade process in my case. Also, "About my Mac" shows my OS version as simply "10.8.5", without any "Server" mention, is this normal too?
If everything above is normal, I suppose that the safe and normal way is upgrading to Yosemite, and then buying normally Server 4.0 in the Mac App Store?
In case something goes wrong, is there a way to "export" all Server 2.2 settings in order to import them later in Server 4.0?
My Mac Mini is headless, managed through Screen Sharing on an iMac. Can the upgrade to Yosemite be done without an actual monitor? In other words, will the "Screen sharing" service on the Mac Mini still be enabled? If not, will the "target display mode" work, using the iMac screen and a Thunderbolt cable?
Any help is greatly appreciated. Thanks!

Technically, you can downgrade if you have the following:
Your computer must be elligible to run Mountain Lion. If your computer came with Mavericks or Yosemite out of the box, you can forget it.
You need an already existing Mountain Lion installer file. If you still have that somewhere, for example in your Applications folder, or anywhere else, it's usable- note that it needs to be originally downloaded with your own Apple ID and password. If you made a Mountain Lion USB installer or DVD back then that would work too. If your Time Machine back-ups go back to the days of Mountain Lion or Lion you could check your Applications folder from inside Time Machine and restore it to your computer.
To not have data loss you need a Time Machine back-up that goes back to when you were still running Mountain Lion. Please note that this will revert your data to exactly the date that you choose. If you installed Mavericks 2 months ago, you will loose 2 months worth of data.

Photon plus not working after upgrading to yosemite from mavericks

I upgraded to yosemite. Now my photn plus is not working. Please solve my problem.

HI
some apps are not working anymore with yosemite and sometimes you have to buy it (server apps case) or just upgrade it from appstore (iPhoto,... Case)

Upgraded to Yosemite from Mt.Lion, now my MacMini is extremely slow

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