After restarting in safe mode then again normally i have Bluetooth back but safari will not load (having to work from iMac sharing my MBA screen), also here is EtreCheck report of MBA as asked to do.
EtreCheck version: 3.0.5 (309)
Report generated 2016-09-23 18:42:28
Download EtreCheck from https://etrecheck.com
Runtime 2:55
Performance: Excellent
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Problem: Other problem
Hardware Information: ⓘ
MacBook Air (11-inch, Mid 2011)
[Technical Specifications] - [User Guide] - [Warranty & Service]
MacBook Air - model: MacBookAir4,1
1 1.8 GHz Intel Core i7 CPU: 2-core
4 GB RAM Not upgradeable
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en0: 802.11 a/b/g/n
Battery: Health = Normal - Cycle count = 950
Video Information: ⓘ
Intel HD Graphics 3000
Color LCD 1366 x 768
System Software: ⓘ
macOS Sierra 10.12 (16A323) - Time since boot: less than an hour
Disk Information: ⓘ
APPLE SSD SM128C disk0 : (121.33 GB) (Solid State - TRIM: Yes)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / : 120.10 GB (45.28 GB free)
Encrypted AES-XTS Unlocked
Core Storage: disk0s2 120.47 GB Online
USB Information: ⓘ
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: ⓘ
Apple Inc. thunderbolt_bus
Configuration files: ⓘ
/etc/sudoers, File size 2299 but expected 1563
Gatekeeper: ⓘ
Mac App Store and identified developers
Kernel Extensions: ⓘ
/Library/Extensions
[loaded] com.sophos.kext.oas (9.5.50 - SDK 10.11 - 2016-09-21) [Support]
[loaded] com.sophos.nke.swi (9.5.52 - SDK 10.11 - 2016-09-21) [Support]
System Launch Agents: ⓘ
[not loaded] 7 Apple tasks
[loaded] 175 Apple tasks
[running] 63 Apple tasks
[killed] 26 Apple tasks
26 processes killed due to insufficient RAM
System Launch Daemons: ⓘ
[not loaded] com.apple.jetsamproperties.Mac.plist (2016-08-26) [Support]
[not loaded] 37 Apple tasks
[loaded] 167 Apple tasks
[running] 80 Apple tasks
[killed] 20 Apple tasks
20 processes killed due to insufficient RAM
Launch Agents: ⓘ
[running] com.sophos.uiserver.plist (2016-09-13) [Support]
[running] com.trusteer.rapport.rapportd.plist (2016-09-18) [Support]
Launch Daemons: ⓘ
[running] com.sophos.common.servicemanager.plist (2016-09-13) [Support]
[running] com.trusteer.rooks.rooksd.plist (2016-09-18) [Support]
User Launch Agents: ⓘ
[loaded] com.apple.AddressBook.ScheduledSync.PHXCardDAVSource.F00661D4-E7EA-4A05-9787-5D5 800F45AD3.plist (2011-10-13)
User Login Items: ⓘ
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
SpeechSynthesisServer Application Hidden (/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks /SpeechSynthesis.framework/Versions/A/SpeechSynthesisServer.app)
Internet Plug-ins: ⓘ
QuickTime Plugin: 7.7.3 (2016-09-14)
Silverlight: 5.1.30514.0 - SDK 10.6 (2014-08-12) [Support]
Safari Extensions: ⓘ
Adblock Plus - Eyeo GmbH - https://adblockplus.org/ (2016-07-22)
3rd Party Preference Panes: ⓘ
Trusteer Endpoint Protection (2016-09-23) [Support]
Time Machine: ⓘ
Skip System Files: NO
Mobile backups: ON
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 120.10 GB Disk used: 74.82 GB
Destinations:
MacBook [Network]
Total size: 0 B
Total number of backups: 0
Oldest backup: -
Last backup: -
Size of backup disk: Too small
Backup size 0 B < (Disk used 74.82 GB X 3)
Top Processes by CPU: ⓘ
6% WindowServer
1% fontd
1% com.apple.AmbientDisplayAgent
1% kernel_task
0% SophosScanD
Top Processes by Memory: ⓘ
481 MB kernel_task
283 MB mdworker(16)
188 MB Go for Gmail
98 MB SophosScanD
82 MB Safari
Virtual Memory Information: ⓘ
69 MB Free RAM
3.93 GB Used RAM (555 MB Cached)
254 MB Swap Used
Diagnostics Information: ⓘ
Sep 23, 2016, 06:36:41 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-23-183641_ [redacted].crash
/System/Library/Frameworks/WebKit.framework/Versions/A/XPCServices/com.apple.We bKit.WebContent.xpc/Contents/MacOS/com.apple.WebKit.WebContent
Sep 23, 2016, 06:34:28 PM Self test - passed
Sep 23, 2016, 06:27:47 PM ~/Library/Logs/DiagnosticReports/cloudphotosd_2016-09-23-182747_[redacted].cras h
com.apple.cloudphotosd - /System/Library/CoreServices/cloudphotosd.app/Contents/MacOS/cloudphotosd
Sep 23, 2016, 05:46:26 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-23-174626_ [redacted].crash
Sep 23, 2016, 05:38:00 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-23-173800_ [redacted].crash
Sep 23, 2016, 05:34:32 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-23-173432_ [redacted].crash
Sep 23, 2016, 05:23:15 PM /Library/Logs/DiagnosticReports/WindowServer_2016-09-23-172315_[redacted].crash
/System/Library/PrivateFrameworks/SkyLight.framework/Versions/A/Resources/Windo wServer
Sep 23, 2016, 05:22:38 PM /Library/Logs/DiagnosticReports/WindowServer_2016-09-23-172238_[redacted].crash
Sep 23, 2016, 05:21:50 PM /Library/Logs/DiagnosticReports/WindowServer_2016-09-23-172150_[redacted].crash
Sep 23, 2016, 05:21:35 PM ~/Library/Logs/DiagnosticReports/rapportd_2016-09-23-172135_[redacted].crash
/Library/Rapport/*/rapportd.app/Contents/MacOS/rapportd
Sep 23, 2016, 05:21:31 PM /Library/Logs/DiagnosticReports/rapportd_2016-09-23-172131_[redacted].crash
Sep 23, 2016, 05:03:13 PM ~/Library/Logs/DiagnosticReports/rapportd_2016-09-23-170313_[redacted].crash
Sep 23, 2016, 05:01:25 PM ~/Library/Logs/DiagnosticReports/rapportd_2016-09-23-170125_[redacted].crash
Sep 23, 2016, 04:35:26 PM /Library/Logs/DiagnosticReports/rapportd_2016-09-23-163526_[redacted].crash
Sep 23, 2016, 04:35:26 PM ~/Library/Logs/DiagnosticReports/rapportd_2016-09-23-163526_[redacted].crash
Sep 23, 2016, 04:09:13 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-23-160913_ [redacted].crash
Sep 23, 2016, 03:57:43 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-23-155743_ [redacted].crash
Sep 23, 2016, 03:57:11 PM /Library/Logs/DiagnosticReports/backupd_2016-09-23-155711_[redacted].cpu_resour ce.diag [Details]
/System/Library/CoreServices/backupd.bundle/Contents/Resources/backupd
Sep 23, 2016, 03:48:13 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-23-154813_ [redacted].crash
Sep 23, 2016, 03:41:15 PM /Library/Logs/DiagnosticReports/SophosScanD_2016-09-23-154115_[redacted].cpu_re source.diag [Details]
/Library/Sophos Anti-Virus/SophosScanD.app/Contents/MacOS/SophosScanD
Sep 23, 2016, 03:35:49 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-23-153549_ [redacted].crash
Sep 23, 2016, 03:34:25 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-23-153425_ [redacted].crash
Sep 23, 2016, 03:12:23 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-23-151223_ [redacted].crash
Sep 23, 2016, 03:10:18 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-23-151018_ [redacted].crash
Sep 23, 2016, 02:32:34 PM /Library/Logs/DiagnosticReports/backupd_2016-09-23-143234_[redacted].cpu_resour ce.diag [Details]
Sep 21, 2016, 08:54:05 PM /Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-21-205405_[ redacted].cpu_resource.diag [Details]
Sep 21, 2016, 08:53:42 PM /Library/Logs/DiagnosticReports/Safari_2016-09-21-205342_[redacted].cpu_resourc e.diag [Details]
/Applications/Safari.app/Contents/MacOS/Safari
Sep 21, 2016, 08:51:43 PM ~/Library/Logs/DiagnosticReports/Safari_2016-09-21-205143_[redacted].crash
Sep 21, 2016, 08:29:34 PM /Library/Logs/DiagnosticReports/backupd_2016-09-21-202934_[redacted].cpu_resour ce.diag [Details]
Sep 21, 2016, 08:09:20 PM /Library/Logs/DiagnosticReports/backupd_2016-09-21-200920_[redacted].cpu_resour ce.diag [Details]
Sep 21, 2016, 07:52:33 PM /Library/Logs/DiagnosticReports/backupd_2016-09-21-195233_[redacted].cpu_resour ce.diag [Details]
Sep 21, 2016, 07:51:45 PM /Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-21-195145_[ redacted].cpu_resource.diag [Details]
Sep 21, 2016, 07:41:20 PM /Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-21-194120_[ redacted].cpu_resource.diag [Details]
Sep 21, 2016, 07:36:05 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-21-193605_ [redacted].crash
Sep 21, 2016, 06:29:43 PM /Library/Logs/DiagnosticReports/backupd_2016-09-21-182943_[redacted].cpu_resour ce.diag [Details]
Sep 21, 2016, 09:01:16 AM ~/Library/Logs/DiagnosticReports/Safari_2016-09-21-090116_[redacted].crash
Sep 21, 2016, 12:08:52 AM /Library/Logs/DiagnosticReports/backupd_2016-09-21-000852_[redacted].cpu_resour ce.diag [Details]