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Last week, I reinstalled my company laptop, a HP Pavilion dv7-6b22ed. Everything was installed okay, but there is one issue I can't solve: whenever I download a file, be it a several hunderd MB file or a rather big web page, the computer slows down. It expresses itself as stuttering audio, a slow moving mouse pointer and in almost being able to see that screen components are being drawn (e.g.: selections in comboboxes appear one option at a time). As soon as the download finishes, the computer goes back to its regular speed again. I don't have problems with my download speed, which is around 17Mbps over wireless.
I've installed all of the drivers from the HP site (http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?os=4132&lc=nl&cc=nl&dlc=nl&sw_lang=&product=5191530#N189 - it's a dutch page, because I can't seem to find that make of laptop on HPs site when I have another language) and Windows updates, ran multiple assist tools including HPs Support Assistant and Intel's Driver Update Utility. According to both tools, everything is up-to-date.
The only update I could not install is the BIOS update. It results in a blue screen with the error code DRIVER_VERIFIER_DETECTED_VIOLATION, which I assume means that the driver itself is faulty.
It does not seem to be I/O in general: moving several GB of data from my SATA drive to my SSD drive doesn't slow the machine at all.
I don't believe that Windows 8.1 is the culprit, because I had Windows 8 installed before the reinstallation and that worked just fine and without slowing down. I was thinking that it might be the download speed which slows it down, but I don't know hot to throttle it to test that.
How can I fix this problem?
user849924
Posted 2014-08-10T15:47:04.853
Reputation: 13
looks like you have DPC issues. Trace them with xperf: http://www.msfn.org/board/index.php?showtopic=140263
– magicandre1981 – 2014-08-10T15:52:11.570Looks like a DPC issue with ndis.sys. I've tried installing the Windows 8 drivers on HPs site, but to no avail. The Win7 drivers don't seem to work, either. I've tried uninstalling the wireless driver so I could install it myself, but after a reboot it's back, as if I never removed it. Where do I go from here? – user849924 – 2014-08-11T07:59:39.280
which network card do you have? Post the HW ID which you can see in device manager. – magicandre1981 – 2014-08-11T15:50:47.280
According to Device Manager, I have an Intel Centrino Wireless-N 1030. According to the specs on HPs site: 'Intel 802.11 bgn'. Hardware IDs: PCI\VEN_8086&DEV_008B&SUBSYS_53158086&REV_34, PCI\VEN_8086&DEV_008B&SUBSYS_53158086, PCI\VEN_8086&DEV_008B&CC_028000 and PCI\VEN_8086&DEV_008B&CC_0280. – user849924 – 2014-08-11T16:22:40.773
get the latest driver from Intel.com (not HP) and look if it fixes the issue – magicandre1981 – 2014-08-12T04:14:57.490
I downloaded version 16.11.0 from https://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProdId=3314, but still the same problem. I skipped the software for Bluetooth (v 17.1.1406.01). According to device manager, version 15.4.1.1 has been installed and according to the Intel website, version 16.10.1. Redownloading and reinstalling doesn't yield a different version number. Would the Windows 7 drivers work? Or is there something inherently wrong with my Windows 8.1 install?
– user849924 – 2014-08-12T20:23:24.450upload the generated ETL file (zip it first to reduce the file size) – magicandre1981 – 2014-08-13T07:51:10.130
https://copy.com/8xqhPJhhbJA41EAQ - Please let me know when you've downloaded the archive so I can remove it. Please let me know if this file suffices. – user849924 – 2014-08-13T17:24:12.087