Windows 8.1 flashing between Desktop & blank screen

Hi ,  I am not technical at all so I need your help please !!!

I am on MS Windows 8.1. I am running Norton 360 Product 22.5.2.15, Version V13.0.2.6. I have been using NORTON since I bought my HP PC last September & no previous problems.

I have searched the internet & found out that my problem is caused by NORTON 360.

Problem =

I sign onto PC & get my pink START screen with all the icons.

I can click on OUTLOOK or INTERNET EXPLORER icons & go into them & all is fine BUT if I click on anything else (e.g. DESKTOP or folders or use the SEARCH box or click on PC SETTINGS icon) then PC starts toggling every second between DESKTOP & a blank pink screen (the only icon on this screen is the START screen icon bottom left. If I click on this START screen icon then it displays the pink START screen with all the icons showing then immediately continues to toggle between the DESKTOP & pink blank screens again. The TASKBAR in DESKTOP screen has a continuous 'delay' circle when I put the cursor in it so I cannot use any icon in the TASK BAR.

The only way to get out of this toggling is using TASK MANAGER & click on SIGN OUT.

I have looked on internet & it seems this problem is caused by NORTON. People have removed NORTON & the problem is solved. I used TASK MANAGER to see what was running & in DETAILS tab I see 2 rows of N360.exe - 1 is 1,224K Memory & the other is 832K, 1 has Username SYSTEM & the other has my own username - is this OK ? I cannot get into NORTON by entering NORTON in the SEARCH box because any SEARCH triggers this problem.

I do not want to remove NORTON so does anyone have a suggestion for a NORTON fix for this problem?  

Thanks, Jane