i know you say don't delete. what else can i check?

We'd be able to help you better if we knew what errors (if any) that you are getting. Please answer my question.

nvstor.sys is a Video Driver from Nvidia.

Think Video drivers mainly though it can be others. See the driver section in my generic bluescreen
troubleshooting methods below. BIOS, low level chipset drivers and antivirus/antispyway/security
programs can also cause this. Check the troubleshooter and when you get to the driver section refer
to the generic methods in next message and then return to the troubleshooter if needed.

Look in the Event Viewer to see if anything is reported about.

Windows Vista Event Viewer

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My generic bluescreen troubleshootter, when you get to the driver section skip to the next message and then
come back to this one.

Here are some methods to possibly fix the blue screen issue. If you could give the Blue Screen info that would
help. Such as the BCC and the other 4 entries on the lower left. And any other error information such as STOP
codes and info such as IRQL_NOT_LESS_OR_EQUAL or PAGE_FAULT_IN_NONPAGED_AREA and similar messages.

As examples :

BCCode: 116
BCP1: 87BC9510
BCP2: 8C013D80
BCP3: 00000000
BCP4: 00000002

or in this format :

Stop: 0x00000000 (oxoooooooo oxoooooooo oxooooooooo oxoooooooo)
tcpip.sys - Address 0x00000000 base at 0x000000000 DateStamp 0x000000000


This is an excellent tool for posting Blue Screen Error Information

BlueScreenView scans all your minidump files created during 'blue screen of death' crashes, and displays the
information about all crashes in one table - Free
Blue screen of death (STOP error) information in dump files.


Many BlueScreens are caused by old or corrupted drivers, especially video drivers however there are other causes.

You can do these in Safe Mode if needed or from Command Prompt from Vista DVD or Recovery Options if your
system has that installed by the maker.

This tells you how to access the System Recovery Options and/or from a Vista DVD
What happened to the Recovery Console?

You can try a System Restore back to a point before the problem started if there is one.

How to Do a System Restore in Vista
System Restore - How to - Vista Forums

I suggest that you try a restore point and then if that doesn't work remove the driver with driver sweeper and reinstall. I suggest that you get it from your system's manufacturer rather than nvidia.

When a program stops working, Windows can check for a solution for you. Even if Windows didn't find a solution when the problem first occurred, Windows may have found a solution since. Therefore, you should try this method first.

To check whether Windows has found solutions, follow these steps:

1. Click Start, and then click Control Panel. Or point to Settings, and then click Control Panel.
2. In Control Panel, double-click Problem Reports and Solutions. Or click System and Maintenance, and then click Problem Reports and Solutions.
3. In Problems Reports and Solutions, in the Tasks pane (on the upper left side of the window), click Check for new solutions. Windows will check for solutions to problems. This process may take a few minutes or more.
4. If a message is displayed indicating No new solutions found, click Close. Or, if any links appear under Solutions to install or Information about other problems, click each of the links and follow the steps provided to solve those problems.