Unfortunately, I suspect that the problem lies in Google Drive which is resyncing your files (and Chrome extensions) but lets check some further.
FIRST >>>>Junkware Removal ToolPlease download JRT from
here to your desktop.
Note: Temporarily disable/shut down your protection software now to avoid potential conflicts, how to do so can be read here.Double click the JRT.exe file to run the application.
The application will open an Command Prompt window and run from there (this is normal for this program, so not to be alarmed).
When it is asked, press any key to allow the program to continue / run.
This will create a log on the desktop; please copy and paste the JRT.txt log text in your next post.
Note: After the log file is created, please enable your protection software / reboot your system and verify your protection software is enabled.SECOND >>>>AdwCleaner by XplodeDownload AdwCleaner from
here or from
here. Save the file to the desktop.
NOTE: If you are using IE 8 or above you may get a warning that stops the program from downloading. Just click on the warning and allow the download to complete.
Close all open windows and browsers.Vista/7/8 users: Right click the
AdwCleaner icon on the desktop, click
Run as administrator and accept the UAC prompt to run AdwCleaner.
You will see the following console:
Click the
Scan button and wait for the scan to finish.
After the Scan has finished the window may or may not show what it found and above, in the progress bar, you will see:
Waiting for action. Please uncheck elements you don't want to remove.Click the
Clean button.
Everything checked will be deleted.
When the program has finished cleaning a report appears.
Once done it will ask to reboot, allow this
On reboot a log will be produced please copy / paste that in your next reply. This report is also saved to
C:\AdwCleaner\AdwCleaner[S0].txtOptional:
NOTE: If you see
AVG Secure Search being targeted for deletion,
Here's Why and
Here. You can always
Reinstall it.
LAST >>>>Malwarebytes' Anti-MalwarePlease start Malwarebytes' Anti-Malware.
When the main screen opens, if the database is out of date, you can click on the
Fix Now banner or the
Update Now link
Once the program has loaded and updated, select "
Scan Now >>" to start the scan.
The scan may take some time to finish, so please be patient.
If any malware is found, you will be presented with a screen like the one below.
If any malware is found, make sure that
everything is checked, and click
Remove Selected.
When the scan is complete, click
View detailed log >> to view the results.
The report screen will open.
At the bottom click on Export and select as txt file, save the file to your desktop and click OK. When the export is complete, select
OPEN.
The log file will be opened in your default text file viewer (usually Notepad); select the whole text (Ctrl + A) and copy (Ctrl + c) it to paste here in a reply.