Hi! When starting up my PC, I get an error announcement C:\W\SYSTEM32\NVSVC.DLL. "Missing entry nvssvcStart." This probably delays the starting-up. Any solution? Looking forward to hearing from you. Yours L-Chr.Barlund

I suspect that this file is associated with your NVIDIA display adapter and its missing.
We can perform clean boot troubleshooting to find the root cause.
Clean Boot Troubleshooting.

1. Click Start, type msconfig in the Start Search box, and then press ENTER.
User Account Control permission.
If you are prompted for an administrator password or for a confirmation, type the
password, Or click Continue.
2. On the General tab, click Selective Startup.
3. Under Selective Startup, click to clear the Load Startup items check box.
4. Click the Services tab, click to select the Hide All Microsoft Services check box, and then click Disable All.
5. Click OK.
6. When you are prompted, click Restart.
7. After the computer starts, check whether the problem is resolved.
If the issue is resolved check which third party is causing the problem, referring the link given below:
http://support.microsoft.com/kb/929135

You will need to uninstall and reinstall the problem software on your computer.
Reset the computer to start as usual

After you have finished troubleshooting, follow these steps to reset the computer to start as usual:
Click Start, type msconfig.exe in the Start Search box, and then press ENTER.

If you are prompted for an administrator password or for confirmation, type your password, or click Continue. On the General tab, click the Normal Startup option, and then click OK.

When you are prompted to restart the computer, click Restart.

(B). Uninstall and reinstall the drivers for NVIDIA:

1. Go to Start and right-click on Computers and select Manage. This will bring the Computer Management window, now on the left sidebar select Device Manager.
2. Then go to Display Adapters and right click on your card's name (Nvidia) and click on uninstall.
To reinstall the drivers to Display Adapters and right click on your card's name (Nvidia) and finally click Update Driver Software
3. You have two options here, click the option that reads "search automatically for updated driver software" or manually download the drivers for the Display adapter from the NVIDIA website by following the link below:
http://www.nvidia.com/Download/index.aspx?lang=en-us

This is an error relating to the NVIDIA video card drivers. If you have an NVIDIA graphics card, thentry re-installing the software and drivers. These can be downloaded from the NVIDIA web site.