Copy + Paste (Clipboard) Issues / Not Working

Solution 1
1.     Open an elevated command prompt. To do this, click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
2.     If you are prompted for an administrator password or for a confirmation, type the password, or click Allow. 

            3.     At the command prompt, type the following command, and then press ENTER:

sfc /scannow

Solution 2
Try this:

• Click on Start > Run
• Type:

  Services.msc

  and press Enter
• Enable these services:
  • Network DDE DSDM.
  • Network DDE.
  • Clipbook.