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Today I tried to install Big Sur beta 5, but I could not install it, and it stopped "Apple" mark display and without any progress bar! Totally failed! So I installed Big Sur beta 4 and upgraded it to beta 5 online, and it succeeded, but only 1024x768 display! Paralleles should sriously...

Can we change 3Mb graphics card to more size by Parallels settings? Although I checked the assigned graphics memory was 64MB as default, and so this is not reflected the guest OS (Big Sur)? Is it by Big Sur or Parallels problem?

I ried the installations of Big Sur in the following ways; 1.Install Catalina (latest release) and make it to beta, and install Big Sur In this case, Parallels desktop windows become black display screen and become no response. 2.By the direct install from Big Sur install app. Install and...

I fully agree with you! This morning I received the answer from them as follow; We suggest you to follow the steps to fix the issue step 1: Please follow the instructions provided in the Microsoft support article: http://support.microsoft.com/kb/2854570/en-us Step 2: Restart...

I have the same trouble on this upgade to 10.0.2. Please refer to other post (http://forum.parallels.com/showthread.php?316879-PD10-problems-Win8-1-crashing-network-freezes-disk-errors&p=752652#post752652). "Real time virtual disk optimization" may affect the Windows disk and cause the CHKDSK...

Thanks for information. At present, Windows 8.1 guest OS works normally. As you pointed , I also disabled "Real time virtual disk optimization" and after that Windows become normall (not sure!). Before 10.0.0, the guest Windows 8.1 worked normally without any disk errors, but after upgrading to...

I have the same problems with 10.0.2 (Black screen and no response, system disk error by CHKDSK.exe). I also the similar trouble when upgaded to 10.0.1 (no detection of 10.0.1 release, black screen, CHKDSK.exe error). For both cases, after 2 or 3 times re-install of parallel desktop new version...

Thanks for advices. I found it is caused by the conflict(?) between Paralles desktop and scan (http://www.xscanmac.com/english/index.php). When I found this problem, I checked installed applications, and then it is caused by scan (by stopping the usage of scan, Parallels desktop works normally).

When I run Parallels Desktop for Mac (Build9.0.24229), it does not show any window and does not activate Windows! From the menu bar, the menu item "checking updates ..." become grey, and it repeats this status even after re-running Parallels Desktop for Mac! Sometimes it is fixed after system...