I have several problems with my laptop (Dell Inspiron 6400, system info here) (Intel, Centrino Duo). 1. I do not have my original Setup CD, meaning any problem that could have been easily fixed using it is now a huge problem. 2. This window opens rather frequently. If I attempt to close it by pressing "Cancel", then "Yes", it waits about twenty seconds before coming back up. 3. My Philips DVD+-RW SDVD8820 seems to be dysfunctional. I put in a CD (specifically, CD-R) and the drive makes a few noises for a while, but when I right-click the drive (D and see the Properties, I get Used: 0 Free: 0, meaning there isn't a disk in there at all. I know this is not a problem with the disks, as I have used them in the past and have tried new ones. I have tried updating the driver but to no avail; I am informed that I am already up-to-date. I cannot rollback as I have never made a backup. 4. My media is disconnected. 5. When I shut my computer down, two programs delay it by causing the "End Program" windows to come up. This did not happen in the past.. Never mind. I ran a scan and removed Backdoor.Prorat. It completely fixed this problem and now shut down takes only a few seconds. 6. Startup seems to take forever. I have checked to make sure I don't have unnecessary programs in Startup, and I have only the bare essentials, along with one or two others I need (and have never caused me problems in the past). 7. Safe Mode takes a very long time to start. It seems to be stuck when loading "SPTS.sys" (or stps?). 8. Windows Installer does not work. I tried unregistering and then registering (msiexec /unregister, msiexec /regserver). It seems to be a little slow, but.. it works! I am unsure as to the exact date when these problems began; 2 and 4 have been around ever since I gave my laptop to a friend to fix (I had a problem that caused my computer to immediately BSOD on startup) (4 may have existed before that, but I never had reason to do anything with my ipconfig then), and I have no idea when 4 began. 5 and 6 began after I fixed a BSOD that occurred when my login screen would com up by simply running chkdsks with Recovery Console). As for 7, I have no idea, as when I received this laptop I didn't know there was a Safe Mode. Thanks for reading this thread, and I hope someone can help address at least one of my problems. I came here because I was once helped out of a sticky spot involving a massive infection by multiple viruses by a member named "Blind Dragon".