You're welcome.

Ok,the categories tab is in Spybot's Settings,I was after seeing if you had set up anything for the Spybot scan to run quicker there.No need to look at it at the moment.
You probably should keep your C:\ drive selected when you scan since it's your main drive,but you could just leave the optical drive unchecked.
How about you post a Checks logfile?
Please open Spybot start center,click Report Creator,then click Show Logs over to the right,scroll down and find a Checks.logfile with a recent date roughly around the time the fixing has been freezing.
For an example,a checks logfile from a few days ago would look like this:Checks.140725-1755.txt.
Double click the Checks logfile you've chosen,go to Edit,Select All,then right click somewhere in the document and select Copy,then paste it here.
Hi,
I've been having this freezing problem for a few weeks.
following the instructions you gave above this is the result from today:
Search results from Spybot - Search & Destroy
3/1/2015 1:15:47 PM
Scan took 00:30:15.
10 items found.
DoubleClick: [SBI $4E2AF2AC] Tracking cookie (Google Chrome: Default) (Browser: Cookie, nothing done)
MS Direct3D: [SBI $C2A44980] Most recent application (Registry Change, nothing done)
HKEY_USERS\.DEFAULT\Software\Microsoft\Direct3D\MostRecentApplication\Name
MS Direct3D: [SBI $C2A44980] Most recent application (Registry Change, nothing done)
HKEY_USERS\S-1-5-21-424430542-4288655023-261787936-1000\Software\Microsoft\Direct3D\MostRecentApplication\Name
MS Direct3D: [SBI $C2A44980] Most recent application (Registry Change, nothing done)
HKEY_USERS\S-1-5-18\Software\Microsoft\Direct3D\MostRecentApplication\Name
Windows: [SBI $1E4E2003] Drivers installation paths (Registry Change, nothing done)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\Installation Sources
Windows: [SBI $1E4E2003] Drivers installation paths (Registry Change, nothing done)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\Installation Sources
Windows Explorer: [SBI $D20DA0AD] Recent file global history (Registry Key, nothing done)
HKEY_USERS\S-1-5-21-424430542-4288655023-261787936-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\RecentDocs
Cache: [SBI $49804B54] Browser: Cache (12) (Browser: Cache, nothing done)
Cookie: [SBI $49804B54] Browser: Cookie (3222) (Browser: Cookie, nothing done)
History: [SBI $49804B54] Browser: History (5297) (Browser: History, nothing done)
--- Spybot - Search & Destroy version: 2.4.40.131 DLL (build: 20140425) ---
2014-06-24 blindman.exe (2.4.40.151)
2014-06-24 explorer.exe (2.4.40.181)
2014-06-24 SDBootCD.exe (2.4.40.109)
2014-06-24 SDCleaner.exe (2.4.40.110)
2014-06-24 SDDelFile.exe (2.4.40.94)
2013-06-18 SDDisableProxy.exe
2014-06-24 SDFiles.exe (2.4.40.135)
2014-06-24 SDFileScanHelper.exe (2.4.40.1)
2014-06-24 SDFSSvc.exe (2.4.40.217)
2014-06-24 SDHelp.exe (2.4.40.1)
2014-04-25 SDHookHelper.exe (2.3.39.2)
2014-04-25 SDHookInst32.exe (2.3.39.2)
2014-04-25 SDHookInst64.exe (2.3.39.2)
2014-06-24 SDImmunize.exe (2.4.40.130)
2014-06-24 SDLogReport.exe (2.4.40.107)
2014-06-24 SDOnAccess.exe (2.4.40.11)
2014-06-24 SDPESetup.exe (2.4.40.3)
2014-06-24 SDPEStart.exe (2.4.40.86)
2014-06-24 SDPhoneScan.exe (2.4.40.28)
2014-06-24 SDPRE.exe (2.4.40.22)
2014-06-24 SDPrepPos.exe (2.4.40.15)
2014-06-24 SDQuarantine.exe (2.4.40.103)
2014-06-24 SDRootAlyzer.exe (2.4.40.116)
2014-06-24 SDSBIEdit.exe (2.4.40.39)
2014-06-24 SDScan.exe (2.4.40.181)
2014-06-24 SDScript.exe (2.4.40.54)
2014-06-24 SDSettings.exe (2.4.40.139)
2014-06-24 SDShell.exe (2.4.40.2)
2014-06-24 SDShred.exe (2.4.40.108)
2014-06-24 SDSysRepair.exe (2.4.40.102)
2014-06-24 SDTools.exe (2.4.40.157)
2014-06-24 SDTray.exe (2.4.40.129)
2014-06-27 SDUpdate.exe (2.4.40.94)
2014-06-27 SDUpdSvc.exe (2.4.40.77)
2014-06-24 SDWelcome.exe (2.4.40.130)
2014-04-25 SDWSCSvc.exe (2.3.39.2)
2014-05-20 spybotsd2-install-bdcore-update.exe (2.3.39.0)
2014-07-31 spybotsd2-translation-esx.exe
2013-06-19 spybotsd2-translation-frx.exe
2014-08-25 spybotsd2-translation-hux2.exe
2014-09-10 spybotsd2-translation-nlx.exe
2014-10-01 spybotsd2-translation-nlx2.exe
2014-11-05 spybotsd2-translation-ukx.exe
2014-08-17 unins000.exe (51.1052.0.0)
1999-12-02 xcacls.exe
2012-08-23 borlndmm.dll (10.0.2288.42451)
2012-09-05 DelZip190.dll (1.9.0.107)
2012-09-10 libeay32.dll (1.0.0.4)
2012-09-10 libssl32.dll (1.0.0.4)
2014-04-25 NotificationSpreader.dll
2014-06-24 SDAdvancedCheckLibrary.dll (2.4.40.98)
2014-04-25 SDAV.dll
2014-06-24 SDECon32.dll (2.4.40.114)
2014-06-24 SDECon64.dll (2.3.39.113)
2014-06-24 SDEvents.dll (2.4.40.2)
2014-06-24 SDFileScanLibrary.dll (2.4.40.14)
2014-04-25 SDHook32.dll (2.3.39.2)
2014-04-25 SDHook64.dll (2.3.39.2)
2014-06-24 SDImmunizeLibrary.dll (2.4.40.2)
2014-06-24 SDLicense.dll (2.4.40.0)
2014-06-24 SDLists.dll (2.4.40.4)
2014-06-24 SDResources.dll (2.4.40.7)
2014-06-24 SDScanLibrary.dll (2.4.40.131)
2014-06-24 SDTasks.dll (2.4.40.15)
2014-06-24 SDWinLogon.dll (2.4.40.0)
2012-08-23 sqlite3.dll
2012-09-10 ssleay32.dll (1.0.0.4)
2014-06-24 Tools.dll (2.4.40.36)
2014-03-05 Includes\Adware-000.sbi (*)
2014-01-08 Includes\Adware-001.sbi (*)
2015-02-25 Includes\Adware-C.sbi (*)
2014-01-13 Includes\Adware.sbi (*)
2014-01-13 Includes\AdwareC.sbi (*)
2010-08-13 Includes\Cookies.sbi (*)
2014-11-14 Includes\Dialer-000.sbi (*)
2014-11-14 Includes\Dialer-001.sbi (*)
2014-01-08 Includes\Dialer-C.sbi (*)
2014-01-13 Includes\Dialer.sbi (*)
2014-01-13 Includes\DialerC.sbi (*)
2014-01-09 Includes\Fraud-000.sbi (*)
2014-01-09 Includes\Fraud-001.sbi (*)
2014-03-31 Includes\Fraud-002.sbi (*)
2014-01-09 Includes\Fraud-003.sbi (*)
2012-11-14 Includes\HeavyDuty.sbi (*)
2014-11-14 Includes\Hijackers-000.sbi (*)
2014-11-14 Includes\Hijackers-001.sbi (*)
2014-01-08 Includes\Hijackers-C.sbi (*)
2014-01-13 Includes\Hijackers.sbi (*)
2014-01-13 Includes\HijackersC.sbi (*)
2014-01-08 Includes\iPhone-000.sbi (*)
2014-01-08 Includes\iPhone.sbi (*)
2014-11-14 Includes\Keyloggers-000.sbi (*)
2014-09-24 Includes\Keyloggers-C.sbi (*)
2014-01-13 Includes\Keyloggers.sbi (*)
2014-01-13 Includes\KeyloggersC.sbi (*)
2014-11-14 Includes\Malware-000.sbi (*)
2014-11-14 Includes\Malware-001.sbi (*)
2014-11-14 Includes\Malware-002.sbi (*)
2014-11-14 Includes\Malware-003.sbi (*)
2014-11-14 Includes\Malware-004.sbi (*)
2014-11-14 Includes\Malware-005.sbi (*)
2014-02-26 Includes\Malware-006.sbi (*)
2014-01-09 Includes\Malware-007.sbi (*)
2015-02-25 Includes\Malware-C.sbi (*)
2014-01-13 Includes\Malware.sbi (*)
2013-12-23 Includes\MalwareC.sbi (*)
2014-11-14 Includes\PUPS-000.sbi (*)
2014-01-15 Includes\PUPS-001.sbi (*)
2014-01-15 Includes\PUPS-002.sbi (*)
2015-02-25 Includes\PUPS-C.sbi (*)
2012-11-14 Includes\PUPS.sbi (*)
2014-01-07 Includes\PUPSC.sbi (*)
2014-01-08 Includes\Security-000.sbi (*)
2014-01-08 Includes\Security-C.sbi (*)
2014-01-21 Includes\Security.sbi (*)
2014-01-21 Includes\SecurityC.sbi (*)
2014-11-14 Includes\Spyware-000.sbi (*)
2014-12-10 Includes\Spyware-001.sbi (*)
2015-01-14 Includes\Spyware-C.sbi (*)
2014-01-21 Includes\Spyware.sbi (*)
2014-01-21 Includes\SpywareC.sbi (*)
2011-06-07 Includes\Tracks.sbi (*)
2012-11-19 Includes\Tracks.uti (*)
2014-01-15 Includes\Trojans-000.sbi (*)
2014-01-15 Includes\Trojans-001.sbi (*)
2014-11-14 Includes\Trojans-002.sbi (*)
2014-01-15 Includes\Trojans-003.sbi (*)
2014-01-15 Includes\Trojans-004.sbi (*)
2014-03-19 Includes\Trojans-005.sbi (*)
2014-07-09 Includes\Trojans-006.sbi (*)
2014-01-15 Includes\Trojans-007.sbi (*)
2014-07-09 Includes\Trojans-008.sbi (*)
2014-07-09 Includes\Trojans-009.sbi (*)
2015-02-17 Includes\Trojans-C.sbi (*)
2014-01-15 Includes\Trojans-OG-000.sbi (*)
2014-01-15 Includes\Trojans-TD-000.sbi (*)
2014-01-15 Includes\Trojans-VM-000.sbi (*)
2014-01-15 Includes\Trojans-VM-001.sbi (*)
2014-01-15 Includes\Trojans-VM-002.sbi (*)
2014-01-15 Includes\Trojans-VM-003.sbi (*)
2014-01-15 Includes\Trojans-VM-004.sbi (*)
2014-01-15 Includes\Trojans-VM-005.sbi (*)
2014-01-15 Includes\Trojans-VM-006.sbi (*)
2014-01-15 Includes\Trojans-VM-007.sbi (*)
2014-01-15 Includes\Trojans-VM-008.sbi (*)
2014-01-15 Includes\Trojans-VM-009.sbi (*)
2014-01-15 Includes\Trojans-VM-010.sbi (*)
2014-01-15 Includes\Trojans-VM-011.sbi (*)
2014-01-15 Includes\Trojans-VM-012.sbi (*)
2014-01-15 Includes\Trojans-VM-013.sbi (*)
2014-01-15 Includes\Trojans-VM-014.sbi (*)
2014-01-15 Includes\Trojans-VM-015.sbi (*)
2014-01-15 Includes\Trojans-VM-016.sbi (*)
2014-01-15 Includes\Trojans-VM-017.sbi (*)
2014-01-15 Includes\Trojans-VM-018.sbi (*)
2014-01-15 Includes\Trojans-VM-019.sbi (*)
2014-01-15 Includes\Trojans-VM-020.sbi (*)
2014-01-15 Includes\Trojans-VM-021.sbi (*)
2014-01-15 Includes\Trojans-VM-022.sbi (*)
2014-01-15 Includes\Trojans-VM-023.sbi (*)
2014-01-15 Includes\Trojans-VM-024.sbi (*)
2014-01-15 Includes\Trojans-ZB-000.sbi (*)
2014-01-15 Includes\Trojans-ZL-000.sbi (*)
2014-01-09 Includes\Trojans.sbi (*)
2014-01-16 Includes\TrojansC-01.sbi (*)
2014-01-16 Includes\TrojansC-02.sbi (*)
2014-01-16 Includes\TrojansC-03.sbi (*)
2014-01-16 Includes\TrojansC-04.sbi (*)
2014-01-16 Includes\TrojansC-05.sbi (*)
2014-01-09 Includes\TrojansC.sbi (*)
Hope you can tell me what is happening?!
Thanks.