Samc, when you moved to the new hard drive, did you copy anything over to the new drive, including applications, documents, or files? Error 101 indicates that Acrobat is unable to install, and the most common cause is when application files are moved from one drive to another. You can find information on Error 101 at https://adobe.ly/4br4LuN.
If you did copy the apps over, download and run the CC Cleaner Tool from https://adobe.ly/4dqGzu7 to attempt to remove the files causing the failure.
If you didn't copy the files over, you will want to take a closer look at the log file to determine why Acrobat is blocked from installing. Please see https://adobe.ly/3UpZdtw for information on how to locate more details about Error 101. ^JW
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