windows 10 rundll32 problem

[stormnimbus]

hi guys, i have a windows 10 pro x64 and almost everytime i restart or start from a shutdown, my memory usage goes to 100% and the processes causing this is 5 instances of rundll32.
i have 6gb ram.
tried malwarebytes, asc, virus scanner, ccleaner, registry defrag, pretty much everything.
please help me.

 

[Colif]

right click start button
choose command prompt (admin)
type SFC /scannow and press enter
once its completed, copy/paste this command into same window:
DISM /Online /Cleanup-Image /RestoreHealth and press enter
SFC fixes system files, DISM cleans image files, re run SFC if it failed to fix all files and restart PC

if you already on the Creators edition of win 10 (due out tomorrow) then instructions are slightly different:

right click start button
choose powershell (admin)
type SFC /scannow and press enter
once its completed, copy/paste this command into same window:
Repair-WindowsImage -Online -RestoreHealth
SFC fixes system files, DISM cleans image files, re run SFC if it failed to fix all files and restart PC