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  1. #1
    2 Star Lounger
    Join Date
    Dec 2009
    Sacramento, CA, USA
    Thanked 4 Times in 4 Posts
    For several reasons I'll enumerate below, I try to install all my programs on my D: drive, not the default C: drive. Since I change this for every new program install, I googled and found some registry entries to change. An MS engineer provided the details, so it had to be correct! Job done, that will save me an annoyance.

    Well no, it just created greater problems. First, 9 out of 10 programs ignored the changed default and still wanted to go on the C: drive. Worse, some programs, including MS programs, used the default value not just during install but also as to where they were located, so those links now were broken. And much worse, I started getting strange behaviors: Quicken would download account data but fail to display it; another program installed fine but wouldn't read its database file correctly.

    When I changed the registry entries back to the C: drive, all the problems went away.

    I strongly recommend against changing the default install drive in the registry. If you don't want your programs on the C: drive, just change it for each install.

    Why I want programs on the D: drive:
    • My D: drive is much bigger than my C: drive, more room for programs.
    • My D: drive is actually a 3-disk RAID0 drive, so it's much faster than the C: drive, which is a separate drive.
    • I like to keep the C: drive as small as possible so disk images for backups don't take a long time.

  2. #2
    2 Star Lounger zigzag3143's Avatar
    Join Date
    Dec 2009
    Thanked 3 Times in 3 Posts
    Also a good idea so if/when the OS gets hosed your settings etc are preserved

    Ken J+
    Microsoft Most Valuable Professional-- Windows Expert Consumer 2009---2015
    MCC 2013-2015

    Wanikiyi & Dyami--Team ZigZag3143

  3. #3
    Super Moderator
    Join Date
    Dec 2000
    Renton, Washington, USA
    Thanked 4 Times in 4 Posts
    It does NOT matter what drive you select, some of the programs MUST be within the same drive as the OS. It has been this way for several versions and I thing it was there for Windows 98 if not 95.

    With Windows 7 you are going to need a larger drive than you did before.

    Are the drives you listed REAL drives or are they just partitions on same real drive?

    Now running HP Pavilion a6528p, with Win7 64 Bit OS.

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