Welcome to the Dell Community  @Medic Girl 

Just to let you know that this is an ongoing problem with many other models.

We hope Dell is aware of the problem and is working on a solution.

To better assist you, we would need the exact model number of your laptop/desktop???

Identify your Dell:

https://www.dell.com/support/contents/us/en/04/category/product-support/self-support-knowledgebase/locate-service-tag?dgc=SM&cid=226210&lid=spr2429124398&linkId=69606563

Best regards,

U2

PLEASE DO NOT POST ANY SERVICE TAGS!!!

Dell Inspiron 7000 2 n 1 I7

@Medic Girl 

Go to driver’s directory C:\Windows\System32\drivers find iastora.sys and rename it iastora.old.

Then make sure you REBOOT:

Then install Windows 10 1903 update.

After the Windows 1903 update is installed please try installing the latest "Intel RST" update???

https://downloadcenter.intel.com/download/28966/Intel-Rapid-Storage-Technology-Intel-RST-User-Interf...

Best regards,

U2

NOTE: As this is a work in progress please post back with your results.

I'm getting the same problem with an Inspiron 15 7000.  Was the suggested fix successful?

thanks,

Laurence

@madame_furieuse 

Many have had success.

Just make sure you are not running a "RAID" disk system.

There was one report that it did not work and I am still waiting for a reply if they where using a "RAID" system???

Best regards,

U2

Hi, I renamed the iastora.sys file and rebooted, but now my system is in a boot loop If I can break out of the loop, should I rename the file again?

@madame_furieuse 

Look at the last reply.

https://www.dell.com/community/XPS/XPS-13-9350-Windows-10-Update-stalled-because-of-out-of-date/m-p/7348963#M32485

Are you running "RAID" or a multi hard drive system???

Regards,

U2