Windows 10: Removing Previous Windows installations

I have 4GB left on my primary C: drive and I want to free up space, I have used storage sense to see what is taking up the most data. Previous Windows installations is using 72.5GB, I want to know whether it is safe to delete this? I'm currently on Windows 10 and don't plan to move to Windows 11 for a while. I'm just concerned due to the file size it will interrupt with my whole system. Thanks

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windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx

 

3DMARK05 no install (remove previous version)

Just like the title says .I couldnt remove old install with add remove so I removed all folders and registry entries for 3DMARK05 but still same error remove previous version then the app stops the install . Big Time Bummer*Bang Head :banghead:

 

3DMARK05 no install (remove previous version)

Ok well I found the culprit...It was an add remove folder in the registry , I had deleted the entry for 3dmark05 but didn't delete the folder because it had some funky number name , but once I deleted that folder that was responsible for the add remove entry I was GOLDEN *Toast :toast: ..thanks for all the suggestions*Toast :toast: *Toast :toast: *Toast :toast: I now have it installed again !!!*Smile