To others: I had this exact same problem. Nearly identical screenshot to this one. Max usage, low throughput, latency through the roof. I tried disabling services--like indexing--, chkdsk, power management options, and even crazy things like disabling IPv6 per an Amazon review of my drive (desperate, I know). Nothing I did worked. So I did some research on my drive and unfortunately found that many many other users were experiencing the same issue.
Ultimately, I emailed the manufacturer of my drive and laid out my case, stating that this drive model was defective and requesting that I can send it in and receive the next model up in return (which has 1000+ good reviews). A friendly phone call later and for a very small fee, they complied (negotiate down their fee!). Yesterday I got the new drive and it's night and day. Incomparable. The old SSD was slower than spinning by a large margin, and the new one feels like every other proper SSD I've used. It's wonderful.
If you found this page because of similar issues, spinning or SSD, I'd highly suggest you do some Googling and potentially follow-up with the manufacturer to exchange it. I am very glad I did. Good luck.
bytecodegenerator.exe is program with the aparently problem. – Jones – 2015-07-07T03:50:24.477
3Are there any read errors on the disk (not reported to windows if the disk can eventually read the data on its own. Even if that takes a long time before it succeeds). - Check SMART data for increasing reallocated sectors. – Hennes – 2012-09-05T13:25:20.533
@Hennes 39 of those, and 100 each of uncorrectable sector count and pending sector count – soandos – 2012-09-05T13:26:52.733
1Having such problems on a disk is not a problem. Every modern disk has at least a few. But keep monitoring. If that number increases then you have a problem (and likely also the reason for the low performance). If it stays the same then it is something else. – Hennes – 2012-09-05T13:50:38.807
BTW: Not all SMART values are standardised. But Seagate has nice manual for your drive at http://www.manualowl.com/m/Seagate/ST9500420AS/Manual/51279?page=32
– Hennes – 2012-09-05T13:55:00.190Related, if not a duplicate: How do I troubleshoot a slow hard drive?
– Deltik – 2012-09-05T21:53:39.1201I'm glad running chkdsk fixed this, but you could also check the Processes tab and sort by disk activity to see what is using the disk. I do this every time I boot, just because I'm like that. – Mark Allen – 2012-09-06T19:03:35.977
@MarkAllen I did this, and it was nothing interesting. Total speed consumed was still very very low. – soandos – 2012-09-07T02:09:13.200
Related: http://superuser.com/questions/649862/windows-8-hard-disk-usage-100
– Ƭᴇcʜιᴇ007 – 2013-09-25T15:17:07.463I also have the exact same issue. I started with the screen shot same as above and ended up in this post by suggestion. This issue is around me since 3 month back. While googling I got the answer to set
high performance
I did it already, still the problem seems not end. It is actually there is no proper resource management in windows 8. It is not balanced with memory, cp speed and hard disk write speed. – Muneer – 2014-04-16T06:04:07.497