PC slow, often hanging, and multiple (large) instances of Chrome

Run this Malwarebytes Anti-Rootkit.

Follow the instructions in the thread below. Make sure to download the MBAR linked in it. Let me know if you're not able to launch it and run a scan.

https://forums.malwarebytes.com/topic/198907-requested-resource-is-in-use-error-unable-to-start-malwarebytes/

Before you run the program make sure you follow the instructions under Section 5.
5. Unselect sectors and system below. Hit the scan button.

If you manage to run a scan, delete everything it finds, and then copy/paste the content of the "mbar-log-TODAY'S-DATE.txt" log that is located in the MBAR folder here after.
<<<>>>

Let me know if the problem persists.

Program reported all was clean!  Just before I ran the program, I had to kill IE in the Task Manager because it had frozen again.

I suggest your remov Internet Explorer 11.

How to.
https://www.wikihow.com/Uninstall-Internet-Explorer-11-for-Windows-7

Read or print the page before proceeding.

Step 6
Wait for the uninstallation to complete. Uninstalling Internet Explorer 11 may take a few minutes. Once the uninstallation is complete, click Restart Now to reboot your computer and complete the process.
Internet Explorer will be reverted to the previously-installed version. This could be Internet Explorer 10, 9, or 8.

Step 7
When the PC has restarted, you may wish to hide the Windows Update for Internet Explorer for Windows 7 for x86/x64-based Systems to prevent IE11 from being mistakenly reinstalled again. (see screenshot below)

How is the computer running now?

I uninstalled IE11.  It rolled back to IE8, which most websites started complaining about!

 

I reinstalled Chrome, and all seems well.  The computer is running really nicely for a couple of hours, and before I would have had to kill processes in the Task Manager by now.  So fingers crossed...

 

Not sure how I disable Windows auto-updates though.

Hi,

Not sure how I disable Windows auto-updates though.

http://ccm.net/faq/15286-how-to-disable-updates-in-windows-7

===

You may wish to install Internet Exlore version 10 which is available here.
https://www.microsoft.com/en-ca/download/details.aspx?id=39232

Look at the Install instructions section
You can download the installer and run it later.
I suggest you do that.

When the Download is complete closed all running applications and run the installer file.

When completed restart the computer normally. If all is well then install the Updates for that version using IE 10.

Refer to the Related Resources on the page above.

Hmmm.  I have since had to kill large Chrome processes to get the PC running smoothly again - twice.

 

I have disabled Windows Updates.  I have not installed IE10.

Is it possible that your chorme settings are being synced?

Go to this Chome site:

https://support.google.com/chrome/answer/165139?hl=en&visit_id=1-636464333003076961-2895244757&rd=1

Sigh oin to Chrome as requested on the first line.

Under the People section.

Click the Sync tab.

Slide the sync everything to the left to stop it.

Restart chrome.

How is it now?

Done all that.

 

Still the same.  Every couple of hours, everything slows down / seizes up, I go to Task Manager and fine 8/9 Chrome processes, some seemingly very large, I kill them all, then things are OK again.

 

 

Hi,

The CSRSS process could be problematic.

We will check your BIOS and Master boot record.

Read carefully and follow these steps.
TDSS

• Download TDSSKiller and save it to your Desktop.
• Doubleclick on TDSSKiller.exe to run the application.
• Then click on Start Scan.
• If a suspicious file is detected, the default action will be Skip, click on Continue.
• If an infected file is detected, the default action will be Cure, click on Continue.
• Important: Do NOT change the default action on your own unless instructed by a malware Helper! Doing so may render your computer unbootable.
• It may ask you to reboot the computer to complete the process. Click on Reboot Now.
• If no reboot is required, click on Report. A log file should appear. Please copy and paste the contents of that file here.
• If a reboot is required, the report can also be found in your root directory, (usually C:\ folder) in the form of "TDSSKiller.[Version]_[Date]_[Time]_log.txt". Please copy and paste the contents of that file here.
• ===
  
  Download http://public.avast.com/~gmerek/aswMBR.exe (aswMBR.exe) to your desktop. Double click the aswMBR.exe to run it.
  • Click the "Scan" button to start scan.
  • Upon completion of the scan, click Save log, and save it to your desktop. (Note - do not select any Fix at this time) <- IMPORTANT
  • Please paste the contents of that log in your next reply.
  There shall also be a file on your desktop named MBR.dat. Right click that file and select Send To>Compressed (zipped) folder. Please attach that zipped file in your next reply.
  ===
  
  Wait for further instructions.

 

Hi,

Your Master Boot Record is clean.

Your reinstalled Chrome and it was working fine for awhile. Then the problems returns.
I suspect that this is caused by Syncing Chrome. Please read these instructions make sure you remove the Sync Data otherwise.

Remove Chrome from your Computer and reinstall a fresh copy later.

Before you remove Chrome Export your Bookmarks
Chrome will export your bookmarks as a HTML file, which you can then import into another browser.

How To: http://ccm.net/faq/31791-how-to-backup-your-google-chrome-bookmarks

If you sync you account you must remove it before you save your bookmarks etc...
Delete Your Google Chrome Browser Sync Data
https://www.howtogeek.com/103655/how-to-delete-your-google-chrome-browser-sync-data/


Clear your Chrome cache and cookies
https://support.google.com/chromebook/answer/183083?hl=en


Remove Chrome using the the instructions on this page.
https://support.google.com/chrome/answer/95319?hl=en

Re-install Chrome and the Bookmarks.
====

OK thank you.  Sounds similar to something I've already done, but I'll work through the instructions and give it another go.

 

It was only a couple of hours the PC was OK for before the problems returned - but that may be all it takes I guess!  It was running mega-fast in safe mode!

 

I'm working solid for the next week, so it may be 7 days or so before I report back.

 

Many thanks.

OK, I have followed exactly all the instructions in #86.  As I say, I have already done all that before, but I guess repeating it can't do any harm!

 

The problem remains.

Hi,

Disable all your Chrome Extentions.
Close Chrome.
If the proglem persists leave the extension disabled.
===

Let check the Chrome Sync.

If you have an intelligent phone and Chrome is installed.
Disable the Chrome Sync.

For you computer, nagivate to this page.
https://forums.malwarebytes.com/topic/214325-chrome-secure-preferences-detection-always-comes-back/

Do just this.

Open your Chrome.
Go to Settings > People > Sync (or alternatively, enter the following in the addressbar: chrome://settings/syncSetup)
On the page, you'll see what synced data is enabled. Move all sliders to the left in order to disable all the syncing.

Then close Chrome.

Now open Chrome.
===

Do not reset any thing. Let me know if the problem persists.