My PC won't shut down. I get a message saying that Windows is working with a file. However, there are no programs open (and nothing shows on the CTR-ALT-DEL task list) and even pressing the off button on the CPU itself produces the same response.
The PC is a Dell Optiplex GX 240 with Windows XP Professional. I don't expect this is a malware problem but my antivirus program is Symantec Antivirus Client Corporate Edition.
This is the first time this has happened. Earlier today I installed a printer (HP Deskjet 6540), which went fine, but I thought I'd mention that in case it could be related.
Thanks in advance for any help!