Coherence mode very slow in Parallels 4

Discussion in 'Windows Virtual Machine' started by HoYoung Kang, Mar 4, 2009.

  1. HoYoung Kang

    HoYoung Kang Bit poster

    Messages:
    2
    Hi

    I am currently using Parallels 4 to run Windows Vista Ultimate 64 bit. When I run Parallels 4 in window mode or full screen mode, the performance is usually acceptable.

    However when I run it in coherence mode both the start up and suspension takes significantly longer. Also even after the VM wakes up from suspension, the VM is unresponsive for a while.

    Does anyone have this issue? Could it be because I have only allocated 1 Gb of memory to the VM? I am running Parallels on an iMac 2.16GHz with 2Gb of RAM.

    Thanks.
     
  2. Peter Canasius J L

    Peter Canasius J L Forum Maven

    Messages:
    509
    Hi HoYoung Kang,

    We will reinstall Parallels Tools.

    1) Go to Control Panel => turn off Windows Firewall and also Anti virus.
    2) Disable the Parallel Internet Security (Kaspersky).
    3) Go to Add or remove Programs => Remove Parallel tools completely.
    4) Install Parallel tools
    5) Restart the Windows Operating System.

    Check if it works fine now.
     
  3. HoYoung Kang

    HoYoung Kang Bit poster

    Messages:
    2
    That seems to have resolved the issue. Thank you.
     

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