Yes, telling us what tests you ran would be helpful with addressing some of your issues.
However, if your system is slow, you may have too many applications loading at startup when Windows boots. Some of these programs are not needed and disabling them can save resources and improve performance as they are available elsewhere - Start > Programs or an icon on the desktop.
Use a startup manager
like Startup Control Panel
or Starter by CodeStuff
If you untick an entry it will no longer run at startup. This will allow you to experiment and see how your system performs with any of them disabled.Note: some startup programs are necessary so be careful what you disable.
If you are unsure what any of the program entries are or if they are safe to disable, then do a search on Google or at one of the following databases:BC's Startup Programs DatabaseStartupList Index
Anytime you come across a suspicious file which you cannot find any information, the file has a legitimate name but is not located where it is supposed to be or you want a second opinion, then submit it to jotti's virusscan
. In the "File to upload & scan
" box, browse to the location of the suspicious file and submit (upload) it for scanning/analysis.