Brand new Win 10 computer runs slow after setup

OK, I will do the items in your last post short of a re-install.

Regarding "- what's missing is which processes are responsible": the 4 screenshots after "clean boot, nothing open, idle 10 minutes" show Task manager Details and Processes under the same setup: clean boot, idle except for Task Manager. I included two of each because CPU usage varies extremely.

It just occurred to me that some back story might be helpful. The computer we have been dealing with here is my wife's new computer. We are replacing her old Win 10 computer because it has slowed down to almost unusable. In April I was using her old computer to set up Roku on our smart tv. In the process Roku customer remote assistance ran a command prompt program on her old computer that they said showed the presence of Alureon trojan. (She uses poor passwords and browsing behavior). Alureon was part of the reason for replacing the old computer. During my original setup on the new computer I started noticing problems as I mentioned in my first post. The problem seemed to improve, and I completed setup without inserting ANY media. Then I moved files from old to new computer. I researched how to safely do so as I did not want to transfer Alureon. I do not recall exactly what I did to transfer files. I am sure I limited the number of files transferred to about 30% of what was on old computer and used only new unused media that had never been in another computer. Sources recommended CD as more secure than flash drive, so I used CDs. I am sure I ran a virus scan on the files to be transferred, I don't recall whether it was in new, old, or both computers. I am sure the problem started before transferring any files, and afterwards it was the same or possibly worse.

windows defender is supposed to be able to remove alureon: TrojanOS/Alureon.A
Run windows defender as full scan.
When it has completed run windows defender in the advance section with offline scan.
It will reboot, load windows defender, and run a quick scan.
Would follow dalchina's suggestion with clean install so that you have a base to start from.

I have 2 restore points, both failed. Msconfig is still stuck on selective.

Hard Disk Sentinel results were "perfect".

chkdsk c: /F failed to run with computer on as "the volumn is in use by another process" even though nothing was open.

sfc /scannow result: "Windows Resource Protection did not find any integrity violations".

Unless either of you have a better idea, tomorrow I will run Windows Defender, followed in-place upgrade repair install. If that fails, I will clean install.

Thank you both for your help.

Hi,
I wouldn't expect much from a 1.6Ghz dual core processor.
If you want performance get a quad core in the 2.50+ range next time
All browsers will stall a dual core to a crawl when opening them
Browsers are getting more power hungry not less it is the price for speed :)

Dalchina:
I read a few of the posts under the search for 80070091. They seem to be a general discussion of aspects of many ways to repair system restore. I can't tell what to actually do. Can you give me instructions?


Thanks for the instructions to produce chkdsk results, they are below.

Checking file system on C:
The type of the file system is NTFS.
Volume label is Windows.


A disk check has been scheduled.
Windows will now check the disk.

Stage 1: Examining basic file system structure ...
506112 file records processed. File verification completed.
10720 large file records processed. 0 bad file records processed.
Stage 2: Examining file name linkage ...
609260 index entries processed. Index verification completed.
0 unindexed files scanned. 0 unindexed files recovered to lost and found.
Stage 3: Examining security descriptors ...
Cleaning up 3 unused index entries from index $SII of file 0x9.
Cleaning up 3 unused index entries from index $SDH of file 0x9.
Cleaning up 3 unused security descriptors.
Security descriptor verification completed.
51575 data files processed. CHKDSK is verifying Usn Journal...
35511296 USN bytes processed. Usn Journal verification completed.

Windows has scanned the file system and found no problems.
No further action is required.

468306230 KB total disk space.
95639876 KB in 265880 files.
169404 KB in 51576 indexes.
0 KB in bad sectors.
630722 KB in use by the system.
65536 KB occupied by the log file.
371866228 KB available on disk.

4096 bytes in each allocation unit.
117076557 total allocation units on disk.
92966557 allocation units available on disk.

Internal Info:
00 b9 07 00 bd d7 04 00 d0 25 09 00 00 00 00 00 .........%......
55 04 00 00 78 00 00 00 00 00 00 00 00 00 00 00 U...x...........

Windows has finished checking your disk.
Please wait while your computer restarts.

ThrashZone said:

Hi,
I wouldn't expect much from a 1.6Ghz dual core processor.
If you want performance get a quad core in the 2.50+ range next time
All browsers will stall a dual core to a crawl when opening them
Browsers are getting more power hungry not less it is the price for speed :)

That's not true in my experience. I never experienced any freezes nor 100% CPU usage with my dual core laptop with Internet Explorer 11. My former 2.2 GHz quad core laptop is infact slower than my current 2.5 GHz dual core laptop when it comes to web browsing.

Since my last post I ran Windows Defender full scan successfully and I saw report of no malware found. Then ran Windows Defender Offline (apparently quick scan) successfully, apparently no malware found but I saw no actual report.

I went to
System Restore fails: AppxStaging %ProgramFiles%\WindowsApp 0x80070091 - Page 2 - Windows 10 Forums
See #13:

but I am still confused. I assume I am to follow the instructions in the blue box in the above post. I booted to safe mode and logged in to admin account with admin user name (everything in this entire posting has been on admin account). I got to command prompt by pressing Win + x, and entered:

attrib "c:\program files\windowsapps" -h

and received "access denied".

Then:

takeown /f "C:\Program Files\WindowsApps" /r /d y

and received "takedown is not recognized...".

If you think it is important to try to fix system restore I am afraid I need idiot proof instructions. As I am probably headed for a reinstall anyway, maybe we should skip this if it will be corrected in the reinstall.

A shot in the dark:
I was gawping at Event Viewer and noticed an error that is apparently being repeated once every second the entire time the computer is running. Scrolling down reveals hundreds of identical events:. Is this a problem?