Promise Ultra 66/100 Driver Download

Promise Drivers

The Ultra 66/100 is a disk drive controller manufactured by Promise. This driver fixes problems with drive not found, slow or unreliable data transfer, intermittent connection or hardware conflicts. Visitors have downloaded this file "" 599 times with an aggregate rating of 5 out of 5 stars based on 4 reviews. Visitors have successfully installed this driver on PCs running Windows XP. The total disk space used for this update is 362.9 KB.

Promise Ultra 66/100 Automatic Driver Update Utility
4 Ratings (see all reviews)

Supported Models

Ultra 66/100



Supported Operating Systems

Linux, Other Unix

File Name

Additional Notes

Read the readme file before using.

Uploaded By

Patrick Lewis (DG Member) on 27-Jan-2001

Ratings & Reviews

See all Promise Ultra 66/100 ratings and reviews

How to Update Ultra 66/100 Device Drivers

Step 1 - Download Your Driver

To get the Ultra 66/100 driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter Promise Ultra 66/100 into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the Promise Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

To find the newest driver, you may need to visit the Promise website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your Driver

After you get your new driver, you need to put it on your computer. On Windows, there's a tool called Device Manager that helps with this. It shows you all the parts of your computer and the drivers they use. To finish setting up the new driver, you'll probably need to turn your computer off and on again.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
readme.txt 2.7 KB 21 Nov 2000
modules.cgz 361.6 KB 10 Nov 2000
rhdd-6.1 3 bytes 10 Nov 2000
modinfo 76 bytes 10 Nov 2000
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