Thanks for the tip Eddy. 
@ korayhamza,
OTL does not show anything particularly interesting, just some remains …
Tell me the computer behavior after OTLFix.
Re-run OTL.exe.
[*]Copy and paste the following text written inside of the quote box into the Custom Scans/Fixes box.
:OTL
IE:[b]64bit:[/b] - HKLM\..\SearchScopes\{2fa28606-de77-4029-af96-b231e3b8f827}: "URL" = http://eu.ask.com/web?q={searchterms}&l=dis&o=HPNTDF
IE - HKLM\..\URLSearchHook: {b6ac5e3c-5ceb-4e72-b451-f0e1ba983c14} - C:\Program Files (x86)\BitTorrentControl_v12\prxtbBitT.dll (Conduit Ltd.)
IE - HKLM\..\SearchScopes\{2fa28606-de77-4029-af96-b231e3b8f827}: "URL" = http://eu.ask.com/web?q={searchterms}&l=dis&o=HPNTDF
IE - HKU\S-1-5-21-3967787821-2340421480-1609785088-1000\..\URLSearchHook: {b6ac5e3c-5ceb-4e72-b451-f0e1ba983c14} - C:\Program Files (x86)\BitTorrentControl_v12\prxtbBitT.dll (Conduit Ltd.)
IE - HKU\S-1-5-21-3967787821-2340421480-1609785088-1000\..\SearchScopes\{2fa28606-de77-4029-af96-b231e3b8f827}: "URL" = http://eu.ask.com/web?q={searchterms}&l=dis&o=HPNTDF
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - No CLSID value found.
O2 - BHO: (BitTorrentControl_v12 Toolbar) - {b6ac5e3c-5ceb-4e72-b451-f0e1ba983c14} - C:\Program Files (x86)\BitTorrentControl_v12\prxtbBitT.dll (Conduit Ltd.)
O3 - HKU\S-1-5-21-3967787821-2340421480-1609785088-1000\..\Toolbar\WebBrowser: (no name) - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - No CLSID value found.
O3 - HKU\S-1-5-21-3967787821-2340421480-1609785088-1000\..\Toolbar\WebBrowser: (BitTorrentControl_v12 Toolbar) - {B6AC5E3C-5CEB-4E72-B451-F0E1BA983C14} - C:\Program Files (x86)\BitTorrentControl_v12\prxtbBitT.dll (Conduit Ltd.)
O4 - HKLM..\Run: [TQ566808] "E:\Setup.exe" File not found
@Alternate Data Stream - 1184 bytes -> C:\Users\Koray\AppData\Local\Temp:n3xkUFYCQBBQxlj2QZlMTLBat9Q
@Alternate Data Stream - 1058 bytes -> C:\Users\Koray\AppData\Local\Temp:qYkaQGRy3lMTmn7vdmSVVDB
:FILES
C:\Program Files (x86)\BitTorrentControl_v12
C:\Windows\*.tmp
:COMMANDS
[EMPTYTEMP]
[*]Then click the Run Fix button at the top.
[*]Let the program run unhindered; it will reboot the system when it is done and open notepad with logreport. Attach here that logreport.
If the log doesn’t appear, it can be found here:
c:_OTL\MovedFiles\mmddyyyy_hhmmss.log
===== Next =====
Please download AdwCleaner by Xplode and save to your Desktop.
Double click on AdwCleaner.exe to run the tool.
[*]Click on the Scan button.
[*]After the scan has finished click on the Clean button.
Press OK when asked to close all programs and follow the onscreen prompts.
Press OK again to allow AdwCleaner to restart the computer and complete the removal process.
[*]After rebooting, a logfile report (AdwCleaner[S0].txt) will open automatically.
[*]Post logfile will also be saved in the C:\AdwCleaner folder.