very slow laptop, formatted several times, always slow

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• Satellite L750: HDD LED lit almost always - very slow system

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• DVD burner in the new laptop VERY SLOW - PLDS DVD +-RW OF THE - 8A5HH

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• I have a computer laptop packard bell who became very slow when stopping down

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• Backups Time Machine very slow on 2015 MacBook Air

  Associated with a topic of discussion between a few days ago (two MacBooks, 10.11.4, a fast Time Machine backup and a very slow), I start a new topic with new information that seem to show it is a problem more general and not related to Time Machine networks.

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  • Time machine network uses a Linux server running the latest Debian and Netatalk 3.1.8 and the connection is via a USB3/Gigabit adapter, no WiFi, and iperf tests with this arrangement shows 900 MB/s of throughput of the server.  In all cases, the Time Machine and external time Machine Network USB HD have the same symptoms.
  • The problem with MacBook Air is configured the same as the MacBook Pro 2011, which she replaced "daily driver", possible
  • This problem was shown by the MBA since his unboxing conversion, taking 20 hours for his first backup once Setup initially.  Incremental backups now take several hours, leading to interrupted incremental backups and, I believe, databases corrupted backup triggers new full backups that take today the 40 hours.

  Using Terminal Server and iostat, Console, etc, I see that there is significant activity e/s for the backup drive on the order of 20 to 40 MB/s for long periods on the MBA during the TM backup, but during that time the average declared backup size as shown in the window in the console and TM is growing by only 5 GB/hour.  This occur even if the backup will the external drive or a network drive. This seems to mean that the I/O bandwidth to and from the disk hard external, only 1/600 contributes to the progress of the backup.  I am sure that there is overload of certain checks and other tasks, but not to a 600-to-1 ratio.

  I tried to disable the limitation of the I/O of low priority as shown here: http://apple.stackexchange.com/questions/212537/time-machine-ridiculously-slow-a close-el-capitan-upgrade, that helps a bit (maybe 20-30%), but not by a factor of 10 for others.

  I have gone through a number of the Time Machine of Pondini troubleshooting steps, but he found nothing corresponding to these symptoms.

  The only thing I can conclude is that Time Machine, the application or configuration, on this specific MBA, is down. (A single thought that I wrote this to the top that I have not tried: the MBA and the time MBP running VMware Fusion and have a file of 50 + GB VM; on the MBA that is not excluded from TM backups while on the MBP is)

  Does anyone have advice on what to watch next?  In all cases, only one key would be why it seems that only 0.16% of all the bandwidth I/O to the backup drive seems to be actual data backup.

  Once again, three other Macs, all running the same 10.11.4, back to the Time Machine Server perfectly and have for years.  Only this new MBA glue as broken out, either to a network drive or an external hard drive USB3.

  (A single thought that I wrote this to the top that I have not tried: the MBA and the time MBP running VMware Fusion and have a file of 50 + GB VM; on the MBA that is not excluded from TM backups while on the MBP is)

  What happens when you exclude it as the MBP?

• Firefox has become very slow. It takes a lot of time to load any website. I reinstalled FF but the fleeting problem.

  Firefox has become very slow. It takes a lot of time to load any website. I reinstalled FF but the rest of the problem.
  As a test, I downloaded Chrome and it is much faster.
  But I love FF and would be very happy if you can help me solve this problem.

  Hi Reos,

  When you reinstall Firefox it always uses your old profile with all the old things that you had. That said, you're lucky, there is a new feature that lets you "Reset" of Firefox. This will remove some of the pieces that might cause problems while it keeps your bookmarks and other important things safe.

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• Windows XP is very slow and auto update works but when I try to run internet explore the system times out. »

  Original title: Windows XP runs very slow

  Windows XP is very slow and auto update works, but when I try to run internet explore the system times out.

  Hi Bill,

  Thanks for posting your question in the Microsoft Community.

  I imagine the inconvenience that you are experiencing. I will certainly help the question of fixing.

  To help you suggest several steps to solve the problem, I would appreciate if you could answer the following questions:

  1. What is the error message that is accurate or complete?
  2. have you made any recent hardware or exchange of software on your computer before the show?

  Please follow the links below and check the issue:

  Maintenance tasks that improve performance:
  http://Windows.Microsoft.com/en-us/Windows-XP/help/Setup/maintenance-improve-performance

  Slow PC? Optimize your computer for optimal performance:
  http://www.Microsoft.com/athome/Setup/optimize.aspx#fBid=R7qdKIMaJyT

  Warning of Chkdsk.
  Important: when running chkdsk on the drive hard if bad sectors are found on the disk hard when chkdsk attempts to repair this area if all available on which data may be lost.
  WARNING: Reset Internet Explorer settings can reset security settings or privacy settings that you have added to the list of Trusted Sites. Reset the Internet Explorer settings can also reset parental control settings. We recommend that you note these sites before you use the reset Internet Explorer settings.

  Note: The data files that are infected must be cleaned only by removing the file completely, which means that there is a risk of data loss.

  Internet Explorer is slow? 5 things to try:
  http://Windows.Microsoft.com/en-us/Windows/help/Internet-Explorer/slow-five-tips-to-boost-performance

  Warning: Reset the Internet Explorer settings can reset security settings or privacy settings that you have added to the list of Trusted Sites. Reset the Internet Explorer settings can also reset parental control settings. We recommend that you note these sites before you use the reset Internet Explorer settings.

  Your response is very important for us to ensure a proper resolution. Please get back to us to help you accordingly.

• Very slow start and run for Dell Inspiron 6400 XP times

  "I have a problem with an Inspiron 6400 brought to ' horribly slow start and run time.  XP Pro 32 bit SP3 patched up to date.  Cleaned up a lot of "undesirable", as the partially uninstalled programs, cleaned the files temporary etc. with CCleaner, cleaned and optimized the registry afer all the cleaning has been done, defragmented, tried to start without any of the boot files, disabled all unnecessary services and uninstalled virus checking software, (but ran several anti-virus controls) etc. - no help.   Safe Start Mode is faster, but... not at all normal - 1 1/2 minutes of screen to logon instead of close to 3 minutes.  A lot of memory (2 GB), which rises to 600 to 700 MB runnng all the stuff I've tried.  Hard drive is 1/3 used out of 120 GB with a 2 GB swap file.

  One thing I'm still scratching my head over - beyond the horribly slow boot - is very slow access to files even though everything seems to work normally, but as molasses in January.  Looking at the performance of the Task Manager tab when I run a copy of a file (whether via a cmd window or with Windows Explorer), I see a near max processor would be and the other with a small business.  Even if the customer says he had been getting worse for some time, after checking and cleaning of all things 'normal', my next thought was perhaps a bad disk or disk controller driver, but chkdsk ran very well (although it took hours) even if I ' d I have already updated all drivers (and even the DVD firmware and BIOS) on the Dell web site.  Oh, and I ran Dell Diagnostics (from bootable CD) updates all with no errors found.  And access to the slow file even with symptoms had max-processor occur with a copy of the file on a USB key that seems to eliminiate the hard disk, the disk controller and the pilot.

  The other interesting part of the display for a file copy task manager is that the processes tab simply shows System Idle 97 to 99%, with a percentage of casual for other processes as Explorer while I see 1 max out procesor on the performance tab.  That the same copy on your desktop shows 3-4% of the CPU usage and who is with active antivirus software.  I'm almost ready to fall toward a Windows reinstall, but would like to find the real reason behind this problem of puzzle...

  It of almost as if he's using PIO instead of DMA disk access, but... don't know how/where to test this.

  Look at:

  http://Windows-XP-tricks.com/direct-memory-access-DMA-on-IDE-hard-drive.php

  and

  http://winhlp.com/node/10

  Solved!   Thanks for the links, especially to each other.  An old but still a goodie!

  For those who have enquring spirits (and anyone else who stumbles across this thread), the primary IDE controller has been set to PIO and locked it.  Who would have thought that Windows slowly reduced the transfer speed, whenever he saw 6 errors on an IDE device until it has been reduced to PIO and then he locked it?  But the procedures described in the link of winhlp.com showed how to solve the problem.

  There are actually several problems that led to the final symptoms.  According to KB817472, the Atapi.sys has been improved in XP SP2 only degrade the speed of transfer on 6 consecutive errors instead of 6 cumulative errors.  And even though everything I have (Microsoft update) was seen and showed that this area was to SP3, I found that the driver for the controller layer IDE was the SP2 version.  Someone ran sfc previously perhaps?

  Oh, and I know now that the Task Manager process tab does not time processor kernal, but the performance tab.  Good to know...

  Thanks again to all who have responded.  Starting at the time of connection-question now is 40 seconds.   You'll love Untra DMA mode 5.   There is still a lingering question in my mind, since I've had the same symptoms of slow copy of a file on a flash drive.  Perhaps a link in some way to the way that Windows treats a flashdrive as a "drive"...