
Once you’re inside the Advanced Boot Options screen, select Last Known Good Configuration from the list of available options.Start your computer and start pressing F8 repeatedly as soon as you see the initial screen to arrive inside the Advanced Boot Options.Here’s a quick guide on booting from the last good configuration: Several affected users have reported that they finally managed to bypass the startup System Registry File Is Missing error by forcing the Startup options screen to appear and selecting the Last known good configuration from the list. If the issue only started occurring recently and you’re looking for a fix that doesn’t involve complicated troubleshooting strategies, you should start by seeing if your computer is capable of completing the startup procedure by using the last good configuration. Method 1: Booting to the last good configuration
In most severe cases, you might need to reset every OS component with a repair install or a clean install procedure.
Several affected users that were also encountering this issue have managed to fix it by running a couple of utilities capable of fixing system file corruption (DISM and SFC).
System file corruption – As it turns out, system file corruption can also be responsible for the apparition of this startup error. If this scenario is applicable, you should be able to fix the problem by using the Bootrec.exe utility to repair the corrupted BCD data. Corrupted BCD data – Once of the most common causes that will produce this particular error is an underlying booting problem caused by corruption inside the BCD data. Several affected users have confirmed that this procedure was effective in their case. In this case, you should be able to resolve the issue by booting to the last known good configuration. Wrong startup configuration – If you’ve previously set up a dual boot system, chances are the wrong BCD data is being used during the startup procedure. Here’s a list of potential culprits that might be responsible for this problem: As it turns out, several different scenarios might lead to the apparition of this issue. We investigated this particular issue by looking at various user reports and by testing out the various repair strategies that are recommended by other users that already managed to threat the symptoms of this issue. What’s causing the ‘ System Registry File is Missing’ error on Windows? System Registry File is Missing Startup error on Windows Although this error is mostly reported to occur on Windows 10, we’ve managed to find a lot of instances of it happening on Windows 7 and Windows 8.1 computers. Most affected users are reporting that the error occurs a few seconds after the final loading screen (of the booting procedure) appears. As a result, they are unable to start their computers conventionally. As it turns out, some users are encountering the ‘ System Registry File is Missing’ error during the booting procedure.