Jeerax
We need much more information like your system specs, your event viewer logs, Has it always done this, etc.....
Please provide us with your Event Viewer administrative logs by following these steps:Click Start Menu
Type eventvwr into Search programs and files (do not hit enter)
Right click eventvwr.exe and click Run as administrator
Expand Custom Views
Click Administrative Events
Right click Administrative Events
Save all Events in Custom View As...
Save them in a folder where you will remember which folder and save as Errors.evtx
Go to where you saved Errors.evtx
Right click Errors.evtx -> send to -> compressed (zipped) folder
Upload the .zip file to Onedrive or a file sharing service and put a link to it in your next post * If you have updated to win 8.1 and you get the error message "the system cannot find the file specified" it is a known problem. The work around is to edit the registry. If you are not comfortable doing this DONT. If you are, backup the key before you do Press Win+"R" and input regedit
Navigate to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WINEVT\Channels. Delete "Microsoft-Windows-DxpTaskRingtone/Analytic"
Hi,
As Team ZigZag mentioned, event viewer can give us more information.
And according to my experience, most of the anti-viruses make the computer slow while scanning, so if you are doing a virus scan, then make sure that you have enough system resources, I suggest you close unnecessary programs and then start the scan.
While performing a full scan, the AVG antivirus scans for the files. The files might be scattered all over the hard disk, so it is always good to perform a disk defragmentation for this issue, or use Disk Cleanup tool.
Disconnect unused network connections
Meanwhile, please keep the latest version of the AVG anti-virus.