My pc recently developed several glitches:
Click on icons/buttons in web browser and nothing happens
Try to print documents from any application and nothing happens
Basic functions stop working e.g copy, paste etc.
Cannot attach documents to e-mails
Restarting the pc sometimes temporarily relieves these problems but they come back after a few minutes.
I also just started getting a window pop up when using web browser that says 'TypeError: oE is null'
I am running Windows 7 and McAfee Security Center.