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My laptop (ASUS N550JV) has a problem: Several months ago, I upgraded my laptop from Windows 8 to Windows 8.1. (using Microsoft's store), but now Windows' start-up is speed is very slow! (up to 5-10 minutes for each boot of Windows)

After Windows booted, I opened the Task Manager view and I realized that a file called "System" is in use by the HDD and it took up 100% of the CPU's resources.

I tried to perform a Windows 8.1 Repair and I also attempted to Refresh Windows.

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I have used this method:

http://windows.microsoft.com/en-us/windows-8/restore-refresh-reset-pc

That was met with this error for refresh:

"Some file are missing. Your windows installation or recovery media will provide these files."

And this error for Repair (in SrtTrail.txt log file):

full report text:

Startup Repair diagnosis and repair log

---------------------------

Last successful boot time: ?1/?10/?2015 1:04:10 PM (GMT)

Number of repair attempts: 1

Session details

---------------------------

System Disk = \Device\Harddisk0

Windows directory = C:\WINDOWS

AutoChk Run = 0

Number of root causes = 1

Test Performed:

---------------------------

Name: Check for updates

Result: Completed successfully. Error code = 0x0

Time taken = 0 ms

Test Performed:

---------------------------

Name: System disk test

Result: Completed successfully. Error code = 0x0

Time taken = 0 ms

Test Performed:

---------------------------

Name: Disk failure diagnosis

Result: Completed successfully. Error code = 0x0

Time taken = 79 ms

Test Performed:

---------------------------

Name: Disk metadata test

Result: Completed successfully. Error code = 0x0

Time taken = 15 ms

Test Performed:

---------------------------

Name: Target OS test

Result: Completed successfully. Error code = 0x0

Time taken = 297 ms

Test Performed:

---------------------------

Name: Volume content check

Result: Completed successfully. Error code = 0x0

Time taken = 422 ms

Test Performed:

---------------------------

Name: Boot manager diagnosis

Result: Completed successfully. Error code = 0x0

Time taken = 62 ms

Test Performed:

---------------------------

Name: System boot log diagnosis

Result: Completed successfully. Error code = 0x0

Time taken = 0 ms

Test Performed:

---------------------------

Name: Event log diagnosis

Result: Completed successfully. Error code = 0x0

Time taken = 63 ms

Test Performed:

---------------------------

Name: Internal state check

Result: Completed successfully. Error code = 0x0

Time taken = 16 ms

Test Performed:

---------------------------

Name: Boot status test

Result: Completed successfully. Error code = 0x0

Time taken = 46 ms

Test Performed:

---------------------------

Name: Setup state check

Result: Completed successfully. Error code = 0x0

Time taken = 172 ms

Test Performed:

---------------------------

Name: Registry hives test

Result: Completed successfully. Error code = 0x0

Time taken = 2344 ms

Test Performed:

---------------------------

Name: Windows boot log diagnosis

Result: Completed successfully. Error code = 0x0

Time taken = 0 ms

Test Performed:

---------------------------

Name: Bugcheck analysis

Result: Completed successfully. Error code = 0x0

Time taken = 406 ms

Test Performed:

---------------------------

Name: Access control test

Result: Completed successfully. Error code = 0x0

Time taken = 10297 ms

Test Performed:

---------------------------

Name: File system test (chkdsk)

Result: Completed successfully. Error code = 0x0

Time taken = 0 ms

Test Performed:

---------------------------

Name: Software installation log diagnosis

Result: Completed successfully. Error code = 0x0

Time taken = 0 ms

Test Performed:

---------------------------

Name: Fallback diagnosis

Result: Completed successfully. Error code = 0x0

Time taken = 0 ms

Root cause found:

---------------------------

Unspecified changes to system configuration might have caused the problem.

Repair action:

Result: Failed. Error code = 0x32

Time taken = 312 ms

Repair action: System Restore

Result: Failed. Error code = 0x1f

Time taken = 491547 ms

Repair action: System files integrity check and repair

Result: Failed. Error code = 0x490

Time taken = 1037735 ms

---------------------------"

Please help me to solve this problem.

Thank you!

Abdul Samad
2015-01-18 10:42:05
Don't worry bro... i will work fine in 1 or 2 days after the upgrade..I was facing the same problem with my sony vaio ( SVE15136CN ) but now its working fine..
ha14
2015-01-17 10:26:51
you need windows 8.1 cd/dvdCreate installation media for Windows 8.1http://windows.microsoft.com/en-au/windows-8/create-reset-refresh-mediacheck Idle Maintenance & Regular Maintenance and disable themTask Scheduler > Microsoft > Windows > Task Scheduler How to Enable or Disable Automatic Maintenance in Windows 8 and 8.1http://www.eightforums.com/tutorials/34374-automatic-maintenance-enable-disable-windows-8-a.htmlHow To Fix High CPU Usage In Windows http://www.makeuseof.com/tag/fix-high-cpu-usage-windows/Try process explorerhttp://technet.microsoft.com/en-us/sysinternals/bb896653.aspxIn the taskbar select View and check 'Show Process Tree' and 'Show LowerPane' option (DLL).click on the CPU column to sort processes by %CPU usageif you see green color that means a process is started deactivating that process can reduce cpu usageright click on system and choose propertiesIf background process is Purple)– Process Explorer thinks that can be malware
Jan F.
2015-01-17 04:00:43
Your repair log suggest that you were trying to use the Windows 8.0 recovery and repair tools on your (broken) Windows 8.1 installation. Unfortunately the 8.1 upgrade tends to create a new recovery and repair partition without telling your system to actually use it.At this point I would ask whether you have a Windows 8.1 recovery or installation media on a USB stick or a DVD. Because if you don't there is no point trying to fix the above. You'd still be stuck with missing the files required to repair the installation.I suggest to backup all of your data either using the broken and slow Windows 8.1 installation or something like a Linux Live CD.Once you backed up all your data restart and press F9 during boot. That should present you either with the Window Setup [EMS] which should allow you to restore your system to factory defaults or the Windows Troubleshooting options where you can select to "reset your PC". * Unfortunately I couldn't find a clear answer as to which recovery options are available for your model and what they may require in terms of user created media.Worst case scenario you will need to get a hold of a Windows 8.0 OEM installation media from someone else or (try) the ASUS support. You can then perform a fresh installation on your system.In the future I strongly suggest looking into ASUS Backtracker or the Windows built-in recovery media options. Whichever is suited for your model.http://www.asus.com/support/FAQ/1008642/In a worst case scenario your hard drive actually fails and no recovery or restore option on it will be available to you. So if your device didn't come with recovery disks make sure to create them yourself.
Kannon Y
2015-01-17 00:08:08
This is a fairly tough issue to diagnose because of the many factors that go into this kind of failure. The key point that I would point out is the failed system restore and the failed system refresh. A restore or refresh overwrite the old operating system files, which means if it's not working, it could be a hard drive that's at the very beginning stages of failure. As a hard drive ages, it loses the ability to write data reliably, meaning it still writes most data, but some data won't write properly, depending on what portion of the hard drive it inhabits. This sometimes causes the issues that you're seeing, including slow boots (which is common because Windows 8.1 refreshes/restores will require a large number of updates) and other problems.Given that your laptop worked fine up until the upgrade is troubling because this suggests that hardware is not bad and that it could be related to the upgrade itself. Also, Windows 8.1 upgrades have been known to cause problems.We've published articles on troubleshooting hard drive failures:http://www.makeuseof.com/tag/how-to-diagnose-and-fix-a-dead-hard-drive-to-recover-data/But in your case the first step I'd take is to use a livedisk to determine whether or not the hard drive is starting to fail. Asus has its own diagnostic tools:http://support.asus.com/Diagnosis/SelfDiagnostic.aspx?SLanguage=enThe best tool is probably PartedMagic's LiveDisk/USB:http://www.makeuseof.com/tag/parted-magic-complete-hard-drive-toolbox-live-cd/There are also drive-specific software out there. However because I don't know the manufacturer of the hard drive, PartedMagic is probable the best tool. There are other options available, as well.If that doesn't work, it's probably related to the upgrade itself. There are other experts around here who can recommend a better means of trouble-shooting Windows 8.1 upgrade issues other than myself. They should supply a response soon.