Hi, A couple of ways to do this, assuming your all backed up and doing a clean install.
Method 1: 1. Shutdown your Mac. 2. Start your Mac in recovery Mode (cmd-r) 3. Choose Language if it appears. 4. In the MacOS Utilities, select Disk Utility. 5. Select Macintosh HD from the table. 6. Press the Erase button in the Toolbar. 7. Confirm and erase. 8. After it has completed, press Done and cmd-q to Quit Disk Utility 9. Select Re-Install MacOS from the table and press Continue. 10. Follow the prompts making sure to choose Macintosh HD as the drive. Your computer will do its thing and restart. Enter temporary credentials for a username and password. Play with it for a while and see if the fan acts as before or if it's fine. or, Method 2: You can download a full version of a MacOS installer using the following Terminal command: softwareupdate --fetch-full-installer --full-installer-version 10.15.1 Using this full installer, you would need to make a bootable USB drive and do the clean install from it. I like Method #1 myself, but if you're comfortable with creating bootable USB sticks, and would prefer that, go right ahead. HTH. Later... Tim Kilburn Apple Teacher (with Swift Playgrounds Recognition) Jamf Certified Associate Fort McMurray, AB Canada On Nov 19, 2019, at 12:07, Anders Holmberg <and...@pipkrokodil.se> wrote: Hi! Just one question. I guess you have to download Catalina from the web? I think the app Store version is not the complete package. Though i can’t find any versions but will dig a little deeper. /A > 19 nov. 2019 kl. 16:57 skrev 'Tim Kilburn' via MacVisionaries > <macvisionaries@googlegroups.com <mailto:macvisionaries@googlegroups.com>>: > > Hi, > > 10 degrees. Wow, that's nice. Yeah, we have snow already. Not a huge pile, > but we seldom get large dumps in our area. The snow just starts some time in > October and keeps accumulating until mid April. Not too bad here today. > About -12 this morning although it's only supposed to make it to -8 or so. > > Good luck with your Catalina exploits. > > Later... > > > Tim Kilburn > Apple Teacher > (with Swift Playgrounds Recognition) > Jamf Certified Associate > Fort McMurray, AB Canada > > On Nov 19, 2019, at 04:53, Anders Holmberg <and...@pipkrokodil.se > <mailto:and...@pipkrokodil.se>> wrote: > > Hi! > Yes my friend! > THat is the best thing to do i guess. > Hope you don’t get lost in the snow up there. > I thought we should get snow now but we got like 10° warm so i am not > optimistic. > /A > >> 19 nov. 2019 kl. 00:06 skrev 'Tim Kilburn' via MacVisionaries >> <macvisionaries@googlegroups.com <mailto:macvisionaries@googlegroups.com>>: >> >> Hi, >> >> Yes, there's no reason for a 2015 MBA with 8 GB of RAM to be made a paper >> weight of. There's some process that is causing the fans to engage, we just >> need to figure out why. Indexing should already be complete, so that's not >> an option in my opinion. You've checked Activity Monitor for processes that >> could be taxing the system, so that's less likely, but still not out of the >> picture. If you have everything backed up, you could do a clean install and >> run it as a test computer for a couple of hours without bringing any >> software or data from the backup. if the fans continue to be a problem, >> then we know that it has nothing to do with your specific installation or >> data, and more to do with some sort of glitch with Catalina and your >> hardware. We can go from there if that is the case, otherwise, we can >> restore your MBA from the backup and see if the problem persists. >> >> Later... >> >> >> Tim Kilburn >> Apple Teacher >> (with Swift Playgrounds Recognition) >> Jamf Certified Associate >> Fort McMurray, AB Canada >> >> On Nov 18, 2019, at 12:32, Anders Holmberg <and...@pipkrokodil.se >> <mailto:and...@pipkrokodil.se>> wrote: >> >> Hi! >> It has 8GB ram so i would be good to go i guess. >> /A >> >>> 18 nov. 2019 kl. 20:19 skrev 'Tim Kilburn' via MacVisionaries >>> <macvisionaries@googlegroups.com <mailto:macvisionaries@googlegroups.com>>: >>> >>> Hi, >>> >>> How much RAM do you have in that MBA? A 2015 model should be fine if it >>> has 8 GB, but a 4 GB one might misbehave a little. >>> >>> Later... >>> \ >>> >>> Tim Kilburn >>> Apple Teacher >>> (with Swift Playgrounds Recognition) >>> Jamf Certified Associate >>> Fort McMurray, AB Canada >>> >>> On Nov 17, 2019, at 15:18, Anders Holmberg <and...@pipkrokodil.se >>> <mailto:and...@pipkrokodil.se>> wrote: >>> >>> Hi! >>> I really not sure what is going on with my macbook air 2015. >>> Catalina made it speed up. >>> Activity manager told me first that VOiceover was the culprit. >>> But i have reset pram and smc and now Voiceover is not the culprit. >>> >>> The activity manager gives no idea on what is going on. >>> Logging out and waiting for several hours does not help. >>> Maybe its time to buy a new one. >>> Or i have to live with it. >>> /A >>> >>> -- >>> The following information is important for all members of the Mac >>> Visionaries list. >>> >>> If you have any questions or concerns about the running of this list, or if >>> you feel that a member's post is inappropriate, please contact the owners >>> or moderators directly rather than posting on the list itself. >>> >>> Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: >>> mk...@ucla.edu <mailto:mk...@ucla.edu> and your owner is Cara Quinn - you >>> can reach Cara at caraqu...@caraquinn.com <mailto:caraqu...@caraquinn.com> >>> >>> The archives for this list can be searched at: >>> http://www.mail-archive.com/macvisionaries@googlegroups.com/ >>> <http://www.mail-archive.com/macvisionaries@googlegroups.com/> >>> --- >>> You received this message because you are subscribed to the Google Groups >>> "MacVisionaries" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to macvisionaries+unsubscr...@googlegroups.com >>> <mailto:macvisionaries+unsubscr...@googlegroups.com>. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/macvisionaries/EC618509-CC2B-475B-87E8-539607088D4B%40pipkrokodil.se >>> >>> <https://groups.google.com/d/msgid/macvisionaries/EC618509-CC2B-475B-87E8-539607088D4B%40pipkrokodil.se>. >>> >>> >>> -- >>> The following information is important for all members of the Mac >>> Visionaries list. >>> >>> If you have any questions or concerns about the running of this list, or if >>> you feel that a member's post is inappropriate, please contact the owners >>> or moderators directly rather than posting on the list itself. >>> >>> Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: >>> mk...@ucla.edu <mailto:mk...@ucla.edu> and your owner is Cara Quinn - you >>> can reach Cara at caraqu...@caraquinn.com <mailto:caraqu...@caraquinn.com> >>> >>> The archives for this list can be searched at: >>> http://www.mail-archive.com/macvisionaries@googlegroups.com/ >>> <http://www.mail-archive.com/macvisionaries@googlegroups.com/> >>> --- >>> You received this message because you are subscribed to the Google Groups >>> "MacVisionaries" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to macvisionaries+unsubscr...@googlegroups.com >>> <mailto:macvisionaries+unsubscr...@googlegroups.com>. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/macvisionaries/9BFD7F49-F71A-40AF-A182-B6D5377FF142%40me.com >>> >>> <https://groups.google.com/d/msgid/macvisionaries/9BFD7F49-F71A-40AF-A182-B6D5377FF142%40me.com?utm_medium=email&utm_source=footer>. >> >> >> -- >> The following information is important for all members of the Mac >> Visionaries list. >> >> If you have any questions or concerns about the running of this list, or if >> you feel that a member's post is inappropriate, please contact the owners or >> moderators directly rather than posting on the list itself. >> >> Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: >> mk...@ucla.edu <mailto:mk...@ucla.edu> and your owner is Cara Quinn - you >> can reach Cara at caraqu...@caraquinn.com <mailto:caraqu...@caraquinn.com> >> >> The archives for this list can be searched at: >> http://www.mail-archive.com/macvisionaries@googlegroups.com/ >> <http://www.mail-archive.com/macvisionaries@googlegroups.com/> >> --- >> You received this message because you are subscribed to the Google Groups >> "MacVisionaries" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to macvisionaries+unsubscr...@googlegroups.com >> <mailto:macvisionaries+unsubscr...@googlegroups.com>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/macvisionaries/01F6DEBF-05E8-442D-A87F-EEA65B53CEF5%40pipkrokodil.se >> >> <https://groups.google.com/d/msgid/macvisionaries/01F6DEBF-05E8-442D-A87F-EEA65B53CEF5%40pipkrokodil.se?utm_medium=email&utm_source=footer>. >> >> >> -- >> The following information is important for all members of the Mac >> Visionaries list. >> >> If you have any questions or concerns about the running of this list, or if >> you feel that a member's post is inappropriate, please contact the owners or >> moderators directly rather than posting on the list itself. >> >> Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: >> mk...@ucla.edu <mailto:mk...@ucla.edu> and your owner is Cara Quinn - you >> can reach Cara at caraqu...@caraquinn.com <mailto:caraqu...@caraquinn.com> >> >> The archives for this list can be searched at: >> http://www.mail-archive.com/macvisionaries@googlegroups.com/ >> <http://www.mail-archive.com/macvisionaries@googlegroups.com/> >> --- >> You received this message because you are subscribed to the Google Groups >> "MacVisionaries" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to macvisionaries+unsubscr...@googlegroups.com >> <mailto:macvisionaries+unsubscr...@googlegroups.com>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/macvisionaries/BE9C63CE-02E1-4FD4-8A81-53E27D57DE8C%40me.com >> >> <https://groups.google.com/d/msgid/macvisionaries/BE9C63CE-02E1-4FD4-8A81-53E27D57DE8C%40me.com?utm_medium=email&utm_source=footer>. > > > -- > The following information is important for all members of the Mac Visionaries > list. > > If you have any questions or concerns about the running of this list, or if > you feel that a member's post is inappropriate, please contact the owners or > moderators directly rather than posting on the list itself. > > Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: > mk...@ucla.edu <mailto:mk...@ucla.edu> and your owner is Cara Quinn - you can > reach Cara at caraqu...@caraquinn.com <mailto:caraqu...@caraquinn.com> > > The archives for this list can be searched at: > http://www.mail-archive.com/macvisionaries@googlegroups.com/ > <http://www.mail-archive.com/macvisionaries@googlegroups.com/> > --- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to macvisionaries+unsubscr...@googlegroups.com > <mailto:macvisionaries+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/macvisionaries/09786921-E1ED-464A-BEC5-6A653A5F601B%40pipkrokodil.se > > <https://groups.google.com/d/msgid/macvisionaries/09786921-E1ED-464A-BEC5-6A653A5F601B%40pipkrokodil.se?utm_medium=email&utm_source=footer>. > > > -- > The following information is important for all members of the Mac Visionaries > list. > > If you have any questions or concerns about the running of this list, or if > you feel that a member's post is inappropriate, please contact the owners or > moderators directly rather than posting on the list itself. > > Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: > mk...@ucla.edu <mailto:mk...@ucla.edu> and your owner is Cara Quinn - you can > reach Cara at caraqu...@caraquinn.com <mailto:caraqu...@caraquinn.com> > > The archives for this list can be searched at: > http://www.mail-archive.com/macvisionaries@googlegroups.com/ > <http://www.mail-archive.com/macvisionaries@googlegroups.com/> > --- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to macvisionaries+unsubscr...@googlegroups.com > <mailto:macvisionaries+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/macvisionaries/09A9BA3F-6116-40D8-8E61-5D58C0BF64A2%40me.com > > <https://groups.google.com/d/msgid/macvisionaries/09A9BA3F-6116-40D8-8E61-5D58C0BF64A2%40me.com?utm_medium=email&utm_source=footer>. -- The following information is important for all members of the Mac Visionaries list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: mk...@ucla.edu and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/macvisionaries@googlegroups.com/ <http://www.mail-archive.com/macvisionaries@googlegroups.com/> --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com <mailto:macvisionaries+unsubscr...@googlegroups.com>. 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