I am using Windows 8 on my new laptop. Copy and Paste stopped working for me, as well. If I try to C&P parts of an instant message (AIM), only a small portion of what I want to copy is actually copied. Sometimes, nothing at all is copied. This issue occurs both when I use right-click "Select all/copy" and right-click "Paste", or whether I highlight and then do control-C, control-V. Same thing happens via both methods when I try to copy from a Word document, to Paste into an email.
Today, I tried to C&P several lines into an email and what was actually pasted into my email was a smiley face-- which was NOT anything that I had copied! wtf??
after about 3 or 4 times (over several days) .. this finally worked for me .. fingers crossed copy/paste still works
>>> type**"sfc /scannow" (see post #1)**